National Museum of Nuclear Science & History
R. K. Dean worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Frei worked for Stone and Webster Engineering Corporation.
Jim Johnson was an ordnanceman at Los Alamos from 1944 to 1945. He was born on January 8, 1926, and started work at the Naval Ordnance Test Station at China Lake, Califiornia in 1944.
Charlotte Serber (1911-1967) was the Los Alamos site librarian and only female group leader of the Manhattan Project.