National Museum of Nuclear Science & History
Dorothea Sacher was a non-techical staff worker at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Ambroso Hoelscher was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Hardleben worked at the 100-F Area at Hanford during the Manhattan Project.
Bradley Jr. worked at the 200 West Area at Hanford during the Manhattan Project.