National Museum of Nuclear Science & History
M. A. Fry worked for the Tennessee Eastman Corporation at the Y-12 Plant.
M. F. Welch worked for the United States Engineer District Office.
Staff Sergeant Edward F. O’Mara enlisted in the U.S. Army in 1942. Because of a blood condition, Army officials determined that he was not fit for combat duty.
H.W. was a consultant at Metallurgical Laboratory in Chicago during the Manhattan Project.