National Museum of Nuclear Science & History
R. C. Wayland served in the 390th Air Service Group.
Caldwell worked in the United States Engineer District Office.
Robert C. Hirt was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Marshall Holloway was an American physicist. He received his PhD in physics from Cornell University. In 1942, he directed a secret Manhattan Project assignment at Purdue University.
