National Museum of Nuclear Science & History
Clarence Signaigo was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
C. J. Klein worked for Clinton Laboratories at the X-10 Reactor.
Marion Van Gemert was born in Wisconsin. She received her bachelor’s degree in home economics from Stout State College.
C. E. Tholstrup worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Fred Patrick worked in DuPont's Chamber Works in Deepwater, NJ in 1943 on Manhattan Project work.