National Museum of Nuclear Science & History
E. S. Ryan, Jr. worked for the Poe Piping & Heating Company.
John H. Martens was a research associate and chemist at the University of Chicago Met Lab and a member of the Special Engineer Detachment at Oak Ridge.
Marle Velde worked for the Kellex Corporation at the K-25 Plant.
Royal H. Mohr served as a staff sergeant in the 393rd Bombardment Squadron.
Nora Lombroso Rossi was a staff worker at Los Alamos during the Manhattan Project. She was married to physicist Bruno Rossi.