National Museum of Nuclear Science & History
Nelle Gaddy worked for the J.A. Jones Construction Company.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Cornelius Harrigan served in the 603rd Air Engineering Squadron.
Bernard Rosenman served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project
