National Museum of Nuclear Science & History
Lee W. Trybell worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
H. Cohen worked for the Roane-Anderson Company.
H. V. Appen worked for the J.A. Jones Construction Company.
Robert Spencer Stone (1895-1966) was a radiologist and headed the Health Division of the Chicago Metallurgical Laboratory (Met Lab) during the Manhattan Project.