National Museum of Nuclear Science & History
Shirley Lewallen was a typist for the Manhattan Project recruitment office in Hanford, Washington between 1942 and 1944.
Tom Scolman arrived in Los Alamos shortly after receiving his Ph.D. in physics from the University of Minnesota under renowned physicist Alfred Nier.
J. P. Hogan worked for Hanley & Company.
Seager worked for Stone and Webster Engineering Corporation.