National Museum of Nuclear Science & History
Ira Carpenter worked for the Edenfield Electric Company.
Walter Groeger worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ruth Marshak was an American teacher and the wife of physicist Robert Marshak. Marshak was born in 1916.
John Ryan was a staff worker at Los Alamos during the Manhattan Project.
