National Museum of Nuclear Science & History
Grace Pitzer worked for the United States Engineer District Office.
O. B. Rogers worked for the J.A. Jones Construction Company.
Wilber A. Stevens was an army officer in charge of overseeing construction at Los Alamos. He helped choose the site where the Manhattan Project would test its first atomic bomb.
Fred Blackwell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
