National Museum of Nuclear Science & History
Kelleher worked for Stone and Webster Engineering Corporation.
Robert E. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ray Williams was a member of the 1st Ordnance Squadron in the 509th Composite Group in Wendover, Utah and on Tinian Island in the Pacific in 1945.
J. H. Leebens worked for the J.A. Jones Construction Company.
Edward T. Esten served in the 1st Ordnance Squadron.