National Museum of Nuclear Science & History
C. D. Mahood worked for the Roane-Anderson Company.
W. J. Cooper served in the 509th Headquarters and Base Services Squadron.
Abraham L. Longfield was a Procurement and Property Officer for the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Otto Frisch (1904-1979) was an Austrian-born physicist. Frisch joined the Manhattan Project in 1943, but his most important contribution to the project came in 1940 in England.