National Museum of Nuclear Science & History
Engel worked in the United States Engineer District Office.
De Franco worked in the United States Engineer District Office.
Major John J. Moran was assigned to the Manhattan Engineer District in Oak Ridge, TN from June 6, 1942 to January 12, 1946.
Lawrence S. O’Rourke began working on the Manhattan Project at Columbia University after he was called up from the Army Reserves in 1943.
