National Museum of Nuclear Science & History
Jas Rose worked for the United States Engineer District Office.
F. D. Ethridge, Jr. worked for Clinton Laboratories at the X-10 Reactor.
Homer W. Ibser was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dana Mitchell was an American physicist. He was in charge of procurement for the physics department at Columbia University during the first year of the Manhattan Project.
Takala worked at the 100-F Area at Hanford during the Manhattan Project.