Monthly Archives: January 2019

The application of a USDOT Crash-Like Computer Program Crash/Trajectory in Forensic Engineering by Robert L. Hess, Ph.D. and Joel T. Hicks, P.E.

In 1987, my young daughter was painting on office paper in her grandparent’s home. Her grandmother gave her the paper to use for this purpose. Together my daughter and her grandmother used the unprinted side of that paper to create water color pictures.

Imagine how delighted I was to find that the back side of the paper they had used contained part of a paper co-authored by my father. I have retyped what I found so that is legible for the reader of this blog. Sadly, not all of the pages are here . I found that you can download this full paper on-line at a cost of $25.00. I did not pay the fee, so this is only a sampling of the full document. Here is the link for the retrieval of the full document…

The Application of a USDOT CRASH-LIKE Computer Program CRASH / TRAJECTORY in Forensic Engineering

Part A: Mathematical Basis and General Capabilities by

Robert L. Hess, PhD

Joel T. Hicks,P.E.

(N.A.F.E. #049 Member)

Automotive accident reconstruction can be dramatically assisted and improved by the use of microcomputers which are programmed to utilize the vehicle damage and accident scene data. CRASH /TRAJECTORY is such a program and is based upon a main-frame computer program developed by the U. S. Department of Transportation. The federal program has been personalized and improved for use by legal and engineering offices faced with the task of interpreting actual accident cases. Where the federal program did not allow the user full access to the internal data tables and the output of the program’ s equations, these new programs do, through the use of user friendly menus and tables.

Introduction to the Underlying Mathematical Principles.

The laws of physics which underlie CRASH/TRAJECTORY are those which relate FORCE to changes in MOMENTUM and to changes in KINETIC and POTENTIAL ENERGY. These are based upon Newton’ s Laws, universally accepted as governing mechanical phenomena involving forces, mass and motion. To use these laws knowingly it would be good to review a few definitions and ideas of the physics of motion. This will be done in the next few paragraphs after which we shall turn to discussion of the program.

A body of mass (mass is the expression of the weight of a body in the gravitational unit named ‘slugs’) which is moving is said to have a VELOCITY and a LINEAR MOMENTUM. First note that there is a subtle difference between the two words SPEED and VELOCITY. Speed i s a measure of the magnitude of the rate of change of position of a body with time. Speed is measured in miles per hour or feet per second (MPH or ft./sec.).Speed does not in itself provide any information as to the direction of motion of a body, the word ‘velocity’ does. Combining the ideas of a body’s speed and direction of motion creates a VECTOR quantity, the VELOCITY VECTOR, or for shortness, the ‘velocity’. Velocity is a vector, i.e., an arrow-like quantity, with both magnitude and direction properties and would be described in writing as say, 45 MPH southward. A vehicle weighing 3220 pounds has



(“Blueberry” was a favorite stuffed animal)

Robert L. Hess’s History of Research, Service and Teaching Contributions to the University of Michigan



November 20, 1984


FROM: Prof. Walter Debler

SUBJECT: Robert L. Hess’s History of Research, Service and Teaching Contributions to the University of Michigan.

Professor Hess received his B.S.E. in Engineering Mathematics and B.S.E. in Engineering Mechanics from the University of Michigan, after which he served as an Engineering Officer in the U.S. Navy.

Upon release from active world war II service he returned to Ann Arbor, the home of his wife, Gretchen R. (Ream) Hess and on a visit to the Engineering Mechanics office was hired as a full-time instructor and was asked to undertake a research project by Prof. J. Ormondroyd. The project became the basis of his Doctorial Thesis, “The Dynamics of Ship’s Structures, including Shear Deformations”.

This work was directed by Professor· Ormondroyd and became one of the first major engineering works to be programmed for the ENIAC (that being done by the David Taylor Model Basin, Dept. of the Navy).

During the three years of full time teaching, (Dr.) Hess served in the U.S. Naval Ready Reserve and spent his training periods at the Model Basin. He was honored by being requested to provide, along with his brother, 40 hours of lectures on mathematics and advanced dynamics for the scientific staff of the Navy at the Model Basin.

Professor Hess was recruited by the Bell Telephone Laboratories and joined BTL as a Member of the Technical Staff in the fall of 1949, being assigned to a ‘heavy-tube’ Development Group. The many research projects he participated in included the assignment to undertake the development of a pilot line for the production of both the material for and the devices known as ‘point-contact’, type A transistors. (This was before the courts orderd BTL to place the technology on the market and was thus a unique endeavor for Dr. Hess.) It was typical of him to have the breadth of both interest and scientific knowledge that brought him such a coveted assignment and also success in it. He developed new techniques of crystal growing and zone-purifying as well as a novel method of doping the contact area to created photo-sensitive transistors.

In his third year at BTL Dean G.G. Brown called him with an unsolicited offer to return to the U. of M. as an Assistant Prof. of Chemical and Metallurgical Eng. and Assistant Professor of Engineering Mechanics and to also take on a Phoenix Project dealing with the atomic structure of glass. Dean Brown gave Prof. Hess the challenge of creating a new course in structure of glass and ceramics. At the end of his third year Hess was promoted to Associate Professor of Engineering Mechanics and left the Chem. Met. Dept. He undertook the reactivation of the Dept.’s Photo-Elasticity Lab. and generated a course for it as well as teaching. in the areas of elasticity and dynamics.

In about 1957, Vice President and Dean of Faculties, Prof. M. Niehus asked Prof. Hess to join an elete committee of engineers and scientists to oversee the work of the Willow Run Laboratories which at that time was experiencing troubled relationships with the Department of the Army, its prime source of support. In Jan. 1958 Dean Niehuss requested that Hess take leave of his teaching and consulting practice and join a new management team, headed by Prof. J.A. Boyd {now Chairman of Harris Corp.) to salvage and redirect the Willow Run Laboratories. Hess was given the specific assignment of Technical Director of Project Michigan as well as an Assistant Directorship of WRL. In addition Hess became the Head of the Applied Research Group of the Labs. In March of 1958 Dean Attwood informed Hess of the approval of his promotion to full Professorship. (A promotion which was said to make Hess the youngest full professor in the College’s history.)

Prof. Hess soon developed a keen ability to manage multiple teams of researchers on topics varying from information processing, semiconductor development, infrared scanning and synthetic antenna radar. He was able to apply his knowledge of basic physics and mathematics to the tasks as a member of the teams involved and to also represent them to the top military officers and, upon the creation of a Department of Defense to the scientific part of that community. In his unique fashion and with unusual modesty his term of management, which after three years included the project directorship as well as it technical direction, Hess always put his staff in the foreground and sacrificed personal fame in the process. Never-the-less upon his decision to return to teaching, the Department of the Army awarded Prof. Hess with THE OUTSTANDING CIVILIAN SERVICE MEDAL the inscription of which read in part ‘Hess succeeded in establishing and maintaining the University of Michigan as the leading free world authority in surveillance technology’.

His own proven scientific talent and professional imagination contributed additionally to the accomplishments of a broad team of scientists and technicians. The rare combination of skill, foresight and devotion to country…’. During the years of 1964 and 1965·, Hess served as the personal representative of the U.S. Army’s Assist Chief of Staff for Intelligence and led teams of scientists through a comprehensive field review of the Army’s Combat Surveillance capabilities in Europe and in Korea. As a token of the regard that the Army had for Hess’s abilities, over 70% of his recommendations from the Korean area were implemented. In 1965 Professor Hess visited with President H. Hatcher with the view of leaving the Project Michigan assignment and returning to full-time teaching. By that time, the I.S.T. had been created and W.R.L. was part of it and Hess was one of its directors. President Hatcher, through Prof. Norman, Vice President for Research offered Hess the challenge of using the $10 million original gift from the automobile industry to create the Highway Safety Research Institute. A counter offer on Hess’ part allowed him to hire a top level ‘internal administrator’ for H.S.R.I. and thus to be able to devote his attention to building the staff and its research programs and to also return to teaching, which was his first love. With a regentially appointed Executive Committee and with the cooperation of dozens of the University’s faculty Hess was able in a few years to build a building, hire internationally known figures and to build a program of research spanning fields from Law to Medicine and from Engineering to Psychology. His untiring drive established the Institute as the world’s premiere institution of its kind and brought not only many millions of research dollars to our campus for the support of researchers, faculty and graduate students but also continued to enhance the reputation of the University of Michigan.

During a long period of the H.S.R.I. years, Hess also served the University as a Consultant to the Army’ Science Board where he both chaired and participated in the study of many of the nation’s outstanding technical problems and challanges.

During the last five years Professor Hess undertook two major research studies while teaching a nearly full load and directing the H.S.R.I. These were first the review of the complete research findings in the scientific, engineering and medical communities of the experimentation protocols and the knowledge in the area of blunt trauma to the human head and second, the same for the area of blunt trauma to the thorax. In each case an annotated history of the development of the government’s use of the knowledge in its regulation was developed and recommendations were put forward for the future of research in the field. The second of these studies was selected for publication in the S.A.E.’s transactions. Hess served the University by membership on President Nixon’s Highway Safety Advisory Committee and also undertook service as a Consultant to the World Health Organization.

Prof Hess resigned his position as Director of U.M.T.R.I. (the succesor to H.S.R.I.) and returned to a full time faculty teaching role in January of 1984. In keeping with his reputation, he has undertaken the teaching of the Control Systems course, ME461, a new course for him, with vigor and has provided new leadership in its laboratory and course work with several software packages he has written to enhance the depth and breath of the educational experience of the students He also accepted an assignment as the Mechanical Engineering Program Adviser and has written software packages now in use by that office to materially enhance the efficiency of the process and to allow the Adviser to take a proactive rather than a reactive role in counseling. He is also supervising the trial use of a professional in this office.

All in all, Professor Hess’ academic and service accomplishments are outstanding and the respect that he has rightfully gained from his peers is only reflective of the credit he has always given to them over 32 years of devoted service to the University. In the classroom, the laboratory and the office he has represented the best the University of Michigan could offer its students and country.

Willow Run Labs Project Michigan article from The Michigan Daily


(I transcribed this article I found on the web

Willow Run (Continued from Page 1)
Several times a year military brass will fly in on special transports to inspect the entire  Willow Run installation. The atmosphere is described as frequently tense by some insiders. Competition for military research contracts is high. Project Michigan, the mainstay of the operation is down to $2.5 million this year from $3.5 several years ago.
Like any office the facility has its in-group jokes. “One of our favorite jokes is to talk about the non-military uses of the new observatory in Hawaii,” says a Willow Run staffer. “Publicly the officials talk about the peaceful uses of the observatory. But everyone knows its there for tracking IC-BM’s and satellites.” Although WRL officials plead ignorance on the matter; there is informed speculation that the $4.3 million dollar observatory the University is staffing in Maui, Hawaii will play a role in satellite warfare.
The defense department sponsored observatory may be used in the highly secretive spy satellite business. Currently the Air-Force is developing a top secret anti-satellite system to knock enemy satellites out of action undetected. The idea is to use sophisticated electronic devices to “bump” an enemy satellite (equipped with cameras and eavesdropping gear) out of action. The new observatory will “track the mid-course flights of . . . orbiting satellites with advanced infrared sensing, measuring and recording devices,” according to President Hatcher’s 1963-64 Annual Report. Tracking the satellites would be an integral part of the anti-satellite system. And trade publications suggest that the new Hawaiian observatory could well be used, in that manner.

Work at the Willow Run center started in 1946 when the facility was known as the Michigan Aeronautical Research Center. The original work was done on adapting ballistic missiles for defense purposes under Project Wizard. In 1950 WRL worked in cooperation with Boeing aircraft on a new missile system to knock out bomber aircraft called BOM-ARC: Boeing Michigan Aeronautical Research Center.’

In 1953, the giant of all past and present research, Project Michigan was born and is still carried on under their auspices. Willis E. Groves, current head of Project Michigan says the basic purpose of Project Michigan was to “build better spectacles for our military” and that it is primarily concerned with radar and infrared research.

According to Robert L. Hess who was director of Project Michigan from 1962-65 when he became director of the Highway Research Institute, “Project Michigan was the best investment ($70 million over the past 13 years) the army ever made.

The army was similarly impressed with Hess’s work and in 1964 awarded him the Outstanding Civilian Service Medal for his contributions as director of Project Michigan, noting that he had “succeeded in establishing and maintaining the University of Michigan as the leading free world authority in surveillance technology.” Hess says he was shocked when he received the award: “I had no idea they were going to give me this, it was a wonderful surprise.”

The Willow Run center also maintains three national clearing-houses. One is the Ballistic Missiles Radiation Center (BAMI-RAC) which collects, analyzes and disseminates information relative to ballistic missile radiation, a subject important in developing a defense against such missiles. BAMIRAC does significant technical research in this area.

An Infrared Information and Analysis center (IRIA) is now in its 13th year and disseminates information on infrared science and technology. A third center now in its seventh year disseminates information on “seismic detection of underground nuclear explosions.”

Although WRL is a nationwide information center, it proves reticent about disclosing the extent of its own activities.

The University makes a “Quarterly Compilation” of all research contracts on campus. But director Evaldson declines to release the information on WRL in the compilation because “I believe this goes into greater detail on our affairs than I could properly make public.”  He will release his own “compilation of the projects,” contained in the quarterly compilation.

Some of the project names tend to be euphemistic. For example a $48,731 Navy sponsored project described as “Passive Lopair Support Studies” with Donald S. Lowe a physicist in the Infrared and Optical Sensor Lab, is actually concerned with “The detection of chemical warfare agents using passive Lopair techniques.” In this project, which expires in January 1969, Lowe is studying the ability of a certain optical system (LOPAIR) to detect chemical warfare agents.

Scientists at the Willow Run center are actively involved in conducting classified symposiums. The Willow Run center continues to conduct the semi-annual meetings of the Anti-Missle Research Advisory Council (AMRAC) under sponsorship of the Defense Departments’ ARPA.

Willow Run scientists have also taken an active role in the ARPA sponsored “Counterinsurgency Research and Development Symposium (CIRADS). Among those who have attended the symposium are Evaldson, James T. Wilson, head of IST, and Marvin Holter, head of the infrared and optical sensor lab at WRL.

This year the University helped plan and sponsor the second annual CIRADS conference held in Houston in June. George Zissis, head of the infared physics lab at WRL was program chairman.

Zissis says that the conference “was an interdisciplinary effort to find out what causes insurgency. We had political scientists deliver papers on the difficult problem of how you handle indigenous forces in friendly contries.”

“This was an effort to give people who have been doing classified work in this field a chance to get together and share their information.”

Zissis says about 300 to 400 persons attended the conference. “There were people from British Intelligence, Thailand, Australia, Hughes Aircraft, the Rand Corporation, George Washington University, and the Royal Canadian Dragoons.”

I tried to get someone to deliver a paper on how we could end the conflict in Vietnam but no one would do it.”

My family timeline (a work in progress)


5 Jan 1849: birth of August Grayer in Posen Province, Prussia (my paternal great grandfather)


20 March 1875: Carl Schmiling is born (maternal great grandfather of Drew)


19 April 1877: Charles Emmett Whitmer (paternal grandfather of Tim Whitmer) is born in Kentucky


20 July 1881: Alma Runke Schmiling is born (maternal great grandmother of Drew


14 Sept 1885: Emilie “Amelia” Angelina Grayer is born in Scio, MI (Grandma Pet- Amelia Grayer Ream, my maternal grandmother)

16 Sept 1885 Grover Cleveland Ream (father of Gretchen Ream Hess and my paternal grandfather) is born in Denver, Miami County, IN


20 May 1890: Aunt Babe (Helen Grayer Mayer, my maternal Great Aunt) is born


6 Sept 1891: George Kellogg Hess, Sr. (my paternal grandfather)  is born in Benton Harbor, MI


31 Jan 1894: Henrietta Spruhan is born in IL (mother of Robert L. Hess and my paternal grandfather)


21 April 1896: Cora Noffsinger Whitmer (paternal grandmother of Tim Whitmer) is born in Kentucky


28 Jun 1911: Henrietta Spruhan graduates from Austin High School in Chicago (mother of Robert Hess and my paternal grandmother)


21 Jan 1912: Elbert Emil Schmiling is born (maternal grandfather of Drew Wiesner)


15 Mar 1915: Olive Viste Schmiling is born (maternal grandmother of Drew Wiesner)


13 Aug 1917:  August Grayer dies (maternal great grandfather of Hess girls)

4 Dec 1917:  Robert Emerson Ream is born (Uncle Bob, my mother’s brother)


14 Nov 1923:  Tim Whitmer’s father Charles Emmett Whitmer, Jr. is born in Kentucky


29 Sep 1924: Robert Hess is born in Orange, Essex. NJ


4 Oct 1925 Gretchen Ream is born in Ann Arbor, MI


14 April 1926: Robert Jack Groshans is born in Arkansas (paternal grandfather of my children)

20 Dec 1926:  Madeline Bravin Groshans  is born in PA (paternal grandmother of my grandchildren)


15 Jan 1929: Juan James Hess dies. The grandfather of Robert Lawrence Hess. Juan leaves his Benton Harbor, MI farm to George K. Hess, Sr.


1930 Census – Robert Hess, his parents and brother are living in Cook County, Chicago, IL (N. Neva Ave.)


20 Jan 1931: Samuel Henry Barnes (father of Chris Barnes) is born in Mississippi

26 March 1931: Grover Ream dies in Ann Arbor, MI (maternal grandfather of Hess girls)





10 Aug 1940: Robert Hess is saved from electrical shock fence (16 years old)

1940 Census – Robert Hess, his parents and brother are living in Benton Harbor, MI (Benton Center Road)


Gretchen is a sophomore at Ann Arbor High 16 years old


Gretchen Ream is a junior at Ann Arbor High 17 years old

Robert Hess graduates from Benton Harbor High School and enters University of Michigan

25 Aug 1942: Robert L. Hess’ date of enlistment


Gretchen Hess graduates from Ann Arbor High School

1 July 1943: Date of Entry into Active Service for Robert L. Hess


26 March 1944: Eugene Norbert Wiesner is born in WI (father of Drew Wiesner)

8 Jun 1944: Joann Emma Schmiling is born in Algoma, WI (mother of Drew Wiesner)


14 Feb 1945: Robert Hess is in V-12 program at University of Michigan

Robert Hess BSE – Engineering-Math BSE- Engineering-Mechanical while in the Navy V-12 program

2 Nov 1945: Robert Hess is appointed as an Ensign, US Navy (graduates from Midshipman school in New York)- this is date of commission

15 Dec 1945: Gretchen and Robert Hess wedding

1945 Gretchen and Robert honeymoon at Niagara Falls

1945 Gretchen lives on N. Main Street and Robert reports to New Port, RI


April – Bob is on a naval shakedown at Guantanamo Bay

Robert Hess in an Instructor or Engineering Mechanics at the University of Michigan 1946-1949

7 July 1946: Robert Hess date of separation from US Naval Service


Gretchen is a stenographer living with Robert at 719 Oakland Street, AA, MI

Robert Hess in an Instructor or Engineering Mechanics at the University of Michigan 1946-1949


Robert Hess in an Instructor or Engineering Mechanics at the University of Michigan 1946-1949


Robert Hess in an Instructor or Engineering Mechanics at the University of Michigan 1946-1949

Robert Hess is employed by Bell Laboratories from 1949 to 1952


Robert Hess is employed by Bell Laboratories from 1949 to 1952

Robert Hess receives Ph.D. from the University of Michigan


Robert Hess is employed by Bell Laboratories from 1949 to 1952


Robert Hess is employed by Bell Laboratories from 1949 to 1952

18 Mar 1952: Mary Ann Hess is born in Bethlehem, PA

14 April 1952: Tim Whitmer is born

19 March 1952: Robert Jack Groshans marries Madeline Bravin in Washington, D.C.


18 Feb 1953: Jack Francis Groshans is born in Ypsilanti, MI


11 Feb 1954: Linda Claire Hess is born in Ann Arbor, MI

31 March 1954: Mark Andrew Groshans is born

6 Nov 1954:  Robert Ream marries Mary Virginia Meredith in San Diego, CA


11 Feb 1955: Linda Claire turns 1 year old

1 May 1955: Grandma Grayer dies (Amelia Wistoff Grayer- maternal great grandmother of Hess girls)


11 Feb 1956: Linda Claire turns 2 years old

4 Dec 1956: Marie Groshans is born


20 Jan 1957: Samuel Henry Barnes turns 26 years old (born in 1931 in Mississippi)

11 Feb 1957: Linda Claire Hess turns 3 years old (born 1954 in Ann Arbor, MI)

18 Feb 1957: Jack Francis Groshans turns 4 years old (born in 1953 in Ypsilanti, MI)

February – Hess girls visit paternal grandparents in Benton Harbor, MI

24 Feb 19357: Anne Barnes turns 24 years old (born in 1933 in New York City)

18 Mar 1957: Mary Ann Hess turns 5 years old (born 1952 in Bethlehem, PA)

26 Mar 1957: Eugene Norbert Wiesner turns 13 years old (born in 1944 in Algoma, Wisconsin)

14 April 1957: Timothy Whitmer turns 5 years old (born in 1952)

23 April 1957: Christopher Franklin Eugene Barnes is born in Paris, France

18 Jun 1957: Joann Schmiling Wiesner turns 13 years old (born 1944 in Algoma, Wisconsin)

29 Sep 1957: Robert Hess turns 33 year old (born in 1924 in Orange, Essex, New Jersey)

04 Oct 1957: Gretchen Ream Hess turns 32 years old (born 1925 in Ann Arbor, MI)

27 Nov 1957: Kathryn Sue Hess is born in Ann Arbor, MI

Robert Hess was asked to oversee the work of the Willow Run Laboratories


11 Feb 1958: Linda Claire turns 4 years old

8 Mar 1958: Carol Renee Groshans is born

March 1948: Robert Hess receives full professorship



11 Feb 1959: Linda Claire turns 5 years old

9 Oct 1959: Glenn Robert Groshans is born


11 Feb 1960: Linda Claire turns 6 years old

November- Robert Hess takes the black and white popular portrait photos of everyone in his family and the extended family


11 Feb 1961: Linda Claire turns 7 years old

Hess family and Aunt Babe take big trip out west – Badlands, Cooley Dam, Mt. Rainer, San Francisco, Disneyland, Yellowstone Park, Knott’s Berry Farm, Marine Land


11 Feb 1962: Linda Claire turns 8 years old

31 Jan 1962: Paul Stephen Groshans is born

Joann Schmiling (Drew Wiesner’s mother) graduates from Algoma High School

13 Dec 1962: Alma Runke Schmiling dies (maternal great grandmother of Drew)

1962: Family trip to Virginia- Williamsburg


11 Feb 1963: Linda Claire turns 9 years old

21 Apr 1963: Daniel Robert Groshans is born

1963: Possible date for RLH at the Model Basin


Gretchen does Christmas Program at Bethlehem

1964 and 1965: Robert Hess served as the personal representative of the U.S. Army’s Assistant Chief of Staff for Intelligence and led teams of scientists though a field review of the Army’s Combat Surveillance capabilities in Europe and in Korea.

1964: House construction for Danbury Lane


11 Feb 1965: Linda Claire turns 11 years old

7 Feb 1965: Thomas Michael Groshans is born

13 Feb 1965: Grandma Pet (Amelia Grayer Ream) dies

18 June 1965: Eugene Norbert Wiesner marries Joann Schmiling (Drew’s parents)

August 1965: Robert Hess travels to Japan


11 Feb 1966: Linda Claire turns 12 years old

17 Jun 1966: Paul Stephen Groshans dies

18 Jun 1966: Wedding of Joann Schmiling to Eugene Wiesner

1 Jul 1966: Robert Hess receives 2nd highest Army award

Robert starts with HSRI

Robert is Chairman of the building committee at BUCC and the new Addition is completed

Summer 1966: possible date for breaking right scapula at Camp Talahi


11 Feb 1967: Linda Claire turns 13 years old

16 Oct 1967: Donna Susan Groshans is born


7 April 1968: Linda Claire’s confirmation

1968: I think this is when Dad went to Hawaii


11 Feb 1969: Linda Claire turns 15 years old

10 Jan 1969: George Kellogg Hess, Sr. dies in Saint Cloud, FL

2 Oct 1969: Highway Safety Research Institute is dedicated


11 Feb 1970: Linda Claire turns 16 years old

President Nixon names Robert Hess to National Highway Safety Advisory Committee for 3 years

31 May 1970: Robert Hess takes Linda Hess on European trip

28 Jun 1970: Jack Groshans graduates from St. John’s in Ypsilanti, MI

July 1970 to June 1973 Jack Groshans works at Ford Motor Company in Saline, as a decorating technician

4 Nov 1970: Kara Lynn Wiesner is born (sister of Drew Wiesner)

Dec. 1970: This could be a possible date for MAW trip to Moscow.


11 Feb 1972: Linda Claire turns 18 years old

6 Jul 1972: Tim Whitmer’s father Charles Emmett Whitmer, Jr. dies

Linda Claire Hess graduates from Pioneer H.S. in Ann Arbor


11 Feb 1973: Linda Claire turns 19 years old

Mary Ann is living in France. Tour d’Aygosi 7, Aix-en-Provence 13100, France

Robert Hess Consultant of the Secretary of the Army’s Scientific Advisory Panel 

April – Mary Ann is getting ready to return to America after a year abroad

Jack is at Lackland Air Force Base, San Antonio, TX (August 24th)

Jack is at the Defense Language Institute in Washington DC

Briarwood Mall opens in October


11 Feb 1974: Linda Claire turns 20 years old

March 1974: Linda visits Jack in DC for spring break

3 Apr 1974: tornado in Hillsdale

April 1974: Khaki takes trip to Germany

May 4 1974: Mary Ann graduates from the University of Michigan

1 Sept 1974: Andrew Jacob Wiesner is born in WI

Claire and Hillsdale friends spend spring break in Washington DC

18 Nov 1974: Jack Groshans has honorable discharge from the US Air Force

1974: This could be a possible date for Dad’s trip to Venezuela for the Pan American Health Conference.


Jack was living at Aunt Rita’s house, 2225 Midvale, Ypsilanti, MI


11 Feb 1976: Linda Claire turns 22 years old

15 May 1976: Linda Claire Hess graduates from Hillsdale College, Hillsdale, MI

Sept. 1976: Kara is in 1st grade


11 Feb 1977: Linda Claire turns 23 years old

February 1977 to April 1982: Jack Groshans works for the US Postal Service

13 Aug 1977: Groshans Wedding in Ann Arbor, MI

Sept 1977: Kara Wiesner is in 2nd grade


11 Feb 1978: Linda Claire turns 24 years old

July 1978 Linda is Sales and Catering Manager for Weber’s Inn until March of 1980


11 Feb 1979: Linda Claire turns 25 years old

8 Sep 1979: Mark Groshans married Pamela Crawford 

Sept 1979: Kara in 4th grade

Linda is Sales and Catering Manager for Weber’s Inn


11 Feb 1980: Linda Claire turns 26 years old

Linda is Sales and Catering Manager for Weber’s Inn until March of 1980

September 1980: Drew enters 1st grade in Port Washington Public Schools. Teacher is Linda Schmidt. Kara is in 5th grade.


11 Feb 1981: Linda Claire turns 27 years old

3 July 1981: Amy Heather Groshans is born

September 1981: Drew enters 2nd grade in Port Washington Public Schools. His teacher was Mrs. Schubert.

13 Dec 1981: Amy baptized at BUCC


11 Feb 1982: Linda Claire turns 28 years old

17 Apr 1982: Marie Groshans married Mark Gravatt

3 July 1982: Amy turns 1 year old

Sep 1982: Kara is in 7th grade


20 Jan 1983: Samuel Henry Barnes turns 52 years old (born in 1931 in Mississippi)

21 Jan 1983 Madalyn Klotz dies at age 65 (born in 1917 in Ann Arbor, MI)

11 Feb 1983: Linda Claire Hess turns 29 years old (born 1954 in Ann Arbor, MI)

18 Feb 1983: Jack Francis Groshans turns 30 years old (born in 1953 in Ypsilanti, MI)

24 Feb 1983: Anne Barnes turns 50 years old (born in 1933 in New York City)

18 Mar 1983: Mary Ann Hess turns 31 years old (born 1952 in Bethlehem, PA)

26 Mar 1983: Eugene Norbert Wiesner turns 39 years old (born in 1944 in Algoma, Wisconsin)

5 Apr 1983: Edward Charles “Bones” Klotz turns 73 years old (born in 1910 in Hamtramck, Michigan

14 Apr 1983: Timothy Whitmer turns 31 years old (born in 1952)

14 Apr 1983: Robert Jack Groshans turns 57 years old (born in 1926 in Eureka Springs, Carroll, Arkansas

23 Apr 1983: Christopher Franklin Eugene Barnes truns 26 years old (born in 1957 in Paris, France)

18 Jun 1983: Joann Schmiling Wiesner turns 39 years old (born 1944 in Algoma, Wisconsin)

3 Jul 1983: Amy Heather Groshans turns 2 years old (born in 1981)

1 Sep 1983: Andrew Jacob Wiesner turns 9 years old (born in 1974)- the 1983/84 school year was at Saukville Elementary School- Mr. Berken.

September 1983- December 1984 Jack Groshans attends Washtenaw Community College

29 Sep 1983: Robert Hess turns 59 years old (born in 1924 in Orange, Essex, New Jersey)

04 Oct 1983: Gretchen Ream Hess turns 58 years old (born 1925 in Ann Arbor, MI)

27 Nov 1983: Kathryn Hess turns 26 years old (born in 1957)



11 Feb 1984: Linda Claire turns 30 years old

Linda Claire works at Chi Systems as Fulfillment Manager for Hospital Purchasing Management publication.

17 Mar 1984: Robert Jack Groshans dies (paternal grandfather of my children)

8 Apr 1984: Kristina Marie Whitmer is born

3 Jul 1984: Amy turns 3 years old

19 Jul 1984: Linda Claire’s hire date at the Ann Arbor Inn as the Conference Manager

20 Sep 1984: Henrietta Spruhan Hess dies in Kissimmee, FL (mother of Robert Hess)

Robert Hess retires from HSRI


1985: Family trip to Toronto (Jack, Linda Claire and Amy)

11 Feb 1985: Linda Claire turns 31 years old

3 July 1985: Amy turns 4 years old


11 Feb 1986: Linda Claire turns 32 years old

Feb 1986: Amy and Linda Claire go to Disney World with Grandma and Grandpa

Mar 1986: Amy gets referral to Dr. Ritter

19 Apr 1986: Jack Groshans graduates from Eastern Michigan University

23 Apr 1986: Amy gets tubes in her ears

3 Jul 1986: Amy turns 5 years old

31 Jul 1986: Amy gets chickenpox

14 Aug 1986: Amy falls and hits teeth- needs 7 upper teeth bonded

3 Oct 1986: Amy has a right foot injury

11 Oct 1986: Dan Groshans marries Elizabeth Gianakaris

Sep 1986: Amy goes to Kindergarten at Jack and Jill



4 Apr 1987: Glenn Groshans married Susan Hayes

Summer 1987: Amy goes to the Grand Traverse with her grandparents.

Sept 1987 : Amy starts 1st grade at St. Thomas the Apostle


Sept 1988: Amy starts 2nd grade at St. Thomas the Apostle with teacher Mrs. Dehring


1989: Amy gets glasses

8 Jan 1989: Charles Robert Whitmer is born

20 Jan 1989: Samuel Henry Barnes turns 58 years old (born in 1931 in Mississippi)

30 Jan 1989: Amy scalds her chest and gets 2nd degree burn

11 Feb 1989: Linda Claire Hess turns 35 years old (born 1954 in Ann Arbor, MI)

18 Feb 1989: Jack Francis Groshans turns 36 years old (born in 1953 in Ypsilanti, MI)

24 Feb 1989: Anne Barnes turns 56 years old (born in 1933 in New York City)

18 Mar 1989: Mary Ann Hess turns 37 years old (born 1952 in Bethlehem, PA)

26 Mar 1989: Eugene Norbert Wiesner turns 45 years old (born in 1944 in Algoma, Wisconsin)

1 Apr 1989: Kathryn Sue Hess marries Christopher Franklin Eugene Barnes

5 Apr 1989: Edward Charles “Bones” Klotz turns 79 years old (born in 1910 in Hamtramck, Michigan

8 Apr 1989: Kristina Marie Whitmer turns 5 years old (born in 1984)

14 Apr 1989: Timothy Whitmer turns 37 years old (born in 1952)

23 Apr 1989: Christopher Franklin Eugene Barnes turns 32 years old (born in 1957 in Paris, France)

May 1989: Linda Claire is hired at the Radisson as the Conference Manager

18 Jun 1989: Joann Schmiling Wiesner turns 45 years old (born 1944 in Algoma, Wisconsin)

3 Jul 1989: Amy Heather Groshans turns 8 years old (born in 1981)

28 Jul 1989: Radisson grand opening

1 Sep 1989: Andrew Jacob Wiesner turns 15 years old (born in 1974)

Sep 1989: Amy starts 3rd grade at St. Thomas the Apostle

29 Sep 1989: Robert Hess turns 65 years old (born in 1924 in Orange, Essex, New Jersey)

04 Oct 1989: Gretchen Ream Hess turns 64 years old (born 1925 in Ann Arbor, MI)

27 Nov 1989: Kathryn Hess turns 32 years old (born in 1957)

20 Dec 1989: Madeline Mary Groshans turns 63 years old (born in 1926 in Pennsylvania)


3 July 1990: Amy’s pirate birthday party

Sep 1990: Amy starts 4th grade at St. Thomas the Apostle- her homeroom teacher is Mrs. V. Frank

Jack, Linda Claire (pregnant) and Amy go on vacation to Jamaica


1991: Amy flies by herself to Oregon

Jack leaves his job at EMU and starts work at Parke-Davis as the Network Installation Manager

20 Jan 1991: Samuel Henry Barnes turns 60 years old (born in 1931 in Mississippi)

11 Feb 1991: Linda Claire Hess turns 37 years old (born 1954 in Ann Arbor, MI)

18 Feb 1991: Jack Francis Groshans turns 38 years old (born in 1953 in Ypsilanti, MI)

24 Feb 1991: Anne Barnes turns 58 years old (born in 1933 in New York City)

29 Mar 1991: Groshans vacation in Florida before going to Negril, Jamaica

18 Mar 1991: Mary Ann Hess turns 39 years old (born 1952 in Bethlehem, PA)

26 Mar 1991: Eugene Norbert Wiesner turns 47 years old (born in 1944 in Algoma, Wisconsin)

5 April 1991: Groshans arrive in Montego Bay – Jamaica (Claire is pregnant on this trip)

8 April 1991: Kristina Marie Whitmer turns 7 years old (born in 1984)

8 April 1991: Linda Claire has genetic counseling and Chorionic Villus sample because of pregnancy risk factors at Hutzel Hospital while 3 months pregnant. Her father, Robert Hess, accompanied her.

14 April 1991: Timothy Whitmer turns 39 years old (born in 1952)

23 April 1991: Christopher Franklin Eugene Barnes truns 34 years old (born in 1957 in Paris, France)

2 May 1991: Blake Andrew Barnes is born

22 May 1991: Amy injury to left hand

31 May 1991: Robert Hess retires and is named Professor Emeritus

6 Jun 1991: Robert Hess is honored as the Director of UMTRI during their 25th anniversary

18 Jun 1991: Joann Schmiling Wiesner turns 47 years old (born 1944 in Algoma, Wisconsin)

3 July 1991: Amy Groshans turns 10 years old

Aug 1991: Linda Claire Groshans leaves job as Conference Manager at the Raddison on the Lake

August 1991: Amy and Claire(who is pregnant) go to Valley View condos at Grand Traverse Resort with Grandma and Grandpa. Jack Groshans joins for the last weekend. The Whitmers also joined us. Family had a 16th floor brunch at the Grand Traverse.

1 Sep 1991: Andrew Jacob Wiesner turns 17 years old (born in 1974 in Milwaukee, WI)

29 Sep 1991: Robert Hess turns 67 year old (born in 1924 in Orange, Essex, New Jersey)

Sept 1991: Amy starts 5th grade at St. Thomas the Apostle

04 Oct 1991: Gretchen Ream Hess turns 66 years old (born 1925 in Ann Arbor, MI)

31 Oct 1991: Michael Robert Groshans is born (born at Catherine McAuley in Ypsilanti, MI)

27 Nov 1991: Kathryn Sue Hess turns 34 years old (born in Ann Arbor, MI)

28 Nov 1991: George Kellogg Hess, Jr. dies at age 69 (born in 1922)


late 1992: Amy gets braces

11 Feb 1992: Linda Claire turns 38 years old

20 Feb 1992: Jack Groshans has hernia surgery

23 Feb 1992: Michael Groshans is baptized

26 Mar 1992:- Amy broken left wrist

13 May 1992: Amy injures right shoulder

14 Jun 1992: – Drew graduates from Port Washington H.S.

Jun – Kara graduates from La Crosse U.W, system

3 Jul 1992: Amy turns 11 years old

13 August 1992: Groshans family reunion in Vancouver and Jack and Linda Claire have 15th Anniversary there

31 Oct 1991: Mike turns 1 year old

Amy wearing braces


Amy broke her left arm (radius) at the first basketball game of the season

10 Feb 1993: Valkyrie put down

11 Feb 1993: Linda Claire turns 39 years old

June 1993: Moved out of house at 609 S. 1st Street

3 July 1993: Amy turns 12 years old

July trip to Wonderland in Toronto.

Sep 1993: Amy starts 7th grade at St. Thomas

3 Sept 1993: Grant Hayes Groshans is born (son of Glenn Groshans)

4 Sept 1993: Donna Groshans marries Todd Michael Gorsuch

31 Oct 1993: Mike turns 2 years old


3 July 1994: Family trip to Disneyworld (celebrated Amy’s 13th bday at MGM studios)

Amy takes a trip to California to spend time with Groshans relatives.

Summer Amy in Camp Talahi

Sept 1994: Amy enters 8th grade at St. Thomas

1 Sept. 1994: Drew (junior at U of W Madison) spends a semester at the University of London living in the Bloomsbury District of London until 15 Dec. 1994.

26 Sept 1994: Jack tells me that he has plans to leave.

Amy is in grade 8 (1994-1995) at St. Thomas.


1 Jan 1995: Amy fell backward injuring right wrist

24 Jan 1995: Alexander Ryan Groshans is born (son of Dan and Beth Groshans)

11 Feb 1995: Linda Claire turns 41 years old

May – Amy confirmation from BUCC

08 Jun 1995: Amy graduates from St Thomas School

3 July 1995: Amy turns 14 years old

Sep 1995: Amy starts 9th grade at Pioneer H.S.

31 Oct 1995: Mike turns 4 years old and is in preschool

Linda Claire Hess Groshans and Jack Groshans are divorced


Mike starts Kindergarten at Jack and Jill

May 1996: Drew graduates from University of Wisconsin-Madison


Mike starts 1st Grade at Abbott Elementary School

1 June 1997: Laura Groshans is born (daughter of Dan and Beth Groshans)

15 August 1997: Kevin Matthew Barnes is born


Mike starts 2nd grade at Pittsfield Elementary School in 1997

2 July 1998: trip to Belle Isle with Bob Shafe

1 Apr 1998: Linda Claire Groshans purchases 2725 Yost Blvd (and sells house at 5431 Pratt Road, AA, MI)


10 Jun 1999: Amy Groshans graduates from Pioneer H.S. in Ann Arbor

Jun 1999: Mike and Amy go to Hawaii

3 Nov 1999: Thomas Groshans marries Teresa Francis Steszewski

Mike starts 3rd grade at Pittsfield Elementary School


Summer & Winter Amy works at Pfizer Global Research and Development 2800 Plymouth Road, Ann Arbor, MI and Summer 2001

Sept 2000: Amy is in 2nd year of college at MSU

Mike starts 4th grade at Pittsfield Elementary School

Amy and Mike have trip to Hawaii


Summer – Amy works at Pfizer Global Research and Development 2800 Plymouth Road, Ann Arbor, MI

Amy works from August to Dec 2001 State of Michigan House of Representatives, State Capitol, Lansing, MI 48909 517-373-0846 Representative James L. Koetje, 74th District of Michigan

Amy lives at 211 E. 53rd St., Apartment 9B, New York, New York, USA

Mike starts 5th grade at Pittsfield Elementary School

Amy and Mike have cruise to Alaska


15 Mar 2002: bad winter storm on Yost

05.02 May 2002: Elbert Emil Schmiling dies (maternal grandfather of Drew Wiesner)

0823 Aug 2002: Catherine Elizabeth Groshans is born (daughter of Tom and Teresa Groshans)

Mike starts 6th grade at Scarlett Middle School

May- June 2002: Amy and Mike have a trip to St. Thomas

May 2002: Amy and Bill in Los Angeles, Santa Monica Pier

July 2002: Amy visits Niagra Falls


August 11 we were in Oscoda

May – Amy graduates from Michigan State University


Mike finishes 7th grade

03.17 Benjamin Michael Groshans is born (son of Tom and Teresa Groshans)

12.09 Robert Ream dies

Mike goes to boy scout jamboree


15 May 2005: Drew graduates from Cornell

1 Jan 2005: Amy’s visit to Connecticut to visit Tom, Teresa, Cate and Ben

18 June 2005: Amy marries Bill Hasler

Bill Hasler accepts a job in Los Angeles

14 June 2005: Mike Groshans has 8th grade graduation from Mill Creek School in Dexter, MI

Claire starts at Bethlehem Church


Jan 2006; Linda Claire and Mike visit Amy in LA

15 May 2006: Journey to Jerusalem room

26 April 2006: Mike confirmation April 26-29

01 Nov 2006: Gretchen Lois Ream Hess dies

Mike is 15 years old on 10-31-91 and finishes 9th grade at Huron High School

Mike takes a summer trip to the Boundary Waters with Boy Scouts

Mike does a Habitat trip in Alpena and then comes directly to Oscoda

Amy and Bill living in Los Angeles, but also then move into NYC apartment

Kristy graduates from MSU – Bachelor of Science, Zoology


Mike is 16 years old on 10-31-91 and finishes 10th grade at Huron H.S.

31 Aug 2007: Mark Groshans dies

9 Oct 2007: Took lots of pics of Amy and Mike at at wedding


Mike is 17 years old on 10-31-91 and finishes 11th grade at Huron H.S.

10.20 Ann marries Jon


April – Amy and Drew trip to Cancun

06.03 – Mike Groshans and Blake Barnes graduate from Huron High School

06.25 Amy in Marathon

July – Drew hunts in Nambia with his father


Fall- Mike starts at the University of Michigan as a freshman


Mike starts work at CITI in the school year and summer of 2010

Hawaiian shirt photos at Mike’s work 12-7

11.21 Amy in Philadelphia Marathon

05.07 Kristy graduates from MSU College of Veterinary Medicine


February 2011: Drew and Amy get engaged

February 2011: Amy and Drew go to San Francisco and Napa Valley with Wiesner family

Mike works at CITI in the school year and summer of 2011

30 July 2011: wedding shower

10 Sept 2011: Amy Heather marries Andrew Jacob Wiesner in New York

Claire’s Arm surgery


Mike starts work at Arbor Networks as an intern in the summer of 2012

14 Jan 2012: Eugene Norbert Wiesner dies (father of Drew Wiesner)

12 Feb 2012: Amy and Drew move to Addison Street

13 Nov 2012: Eugene Jack Wiesner is born in WI at 5:22 AM, 8lbs.1oz. , 19.5″

Mike graduates in the winter of 2012 from the U of M


19 April 2013: Kara Wiesner marries Tom Martin

Mike starts full time at Arbor Networks in January


Mike starts at Twilio in April 2014 and moves to San Francisco


sale of house on Yost Blvd.


July 3rd – Claire moves to Seattle Washington

5 Jul 2016: Claire begins work in Seattle at CEC


05.19 Robert Lawrence Hess dies

October – Claire leaves job at Christ Episcopal Church in Seattle after 14 months employment


Claire buys condo in Ann Arbor in April 2018

Amy and Drew sell Portland OR home

Amy, Drew and EJ move to Germany


12 Jun 2019: Jeep accident

17 Jun 2019: EJ has surgery on his right arm

3 Jul 2019: Amy turns 38 years old