National Museum of Nuclear Science & History
Pef worked for Stone and Webster Engineering Corporation.
Vladislav Ignatov worked for the Roane-Anderson Company.
Arthur C. Stein served in the 320th Troop Carrier Squadron.
Celia Szapka Klemski was working as a secretary for the State Department in Washington, DC when she was transferred to Manhattan to work on the Manhattan Project in 1942.
