National Museum of Nuclear Science & History
Gagen worked in the United States Engineer District Office.
Lillian Guadagna was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Lawrence S. O’Rourke began working on the Manhattan Project at Columbia University after he was called up from the Army Reserves in 1943.
Huffman worked at the 300 Area at Hanford during the Manhattan Project.