National Museum of Nuclear Science & History
A.C. Tregillus was a procurement chief at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Arthur N. Jaffey was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Martens worked in the 200 West Area at Hanford during the Manhattan Project.
A. V. Hawkins worked for the Roane-Anderson Company.