National Museum of Nuclear Science & History
Irvin Mastin worked for the J.A. Jones Construction Company.
Harris Mayer, born in 1921, is an American physicist. During World War II, Mayer joined the Manhattan Project at Columbia University.
Irene Balawender was a stenographer in the Instrument Section at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Spencer Thomas worked for the United States Engineer District Office.
G. R. McLeod worked for the Tennessee Eastman Corporation at the Y-12 Plant.
