National Museum of Nuclear Science & History
A.C. Tregillus was a procurement chief at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Leonard W. Markley served as a sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Enola Gay.
Dorothy McKibbin was responsible for welcoming new recruits to the Manhattan Project. Known by many as the “Gatekeeper to Los Alamos,” McKibbin ran the Santa Fe office at 109 East Palace for the Los Alamos National Laboratory during World War II.
Seymour worked at the 200 West Area at Hanford during the Manhattan Project.