National Museum of Nuclear Science & History
Sherman Winters was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Ed Helfenberger worked for the Roane-Anderson Company.
Major John J. Moran was assigned to the Manhattan Engineer District in Oak Ridge, TN from June 6, 1942 to January 12, 1946.
M. W. Mills worked for the Union Carbide & Carbon Corporation.