National Museum of Nuclear Science & History
Barr worked for Stone and Webster Engineering Corporation.
W. H. McWhirter worked for the J.A. Jones Construction Company.
Ruth A. Casler was a lab technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
John Rendleman worked for the United States Engineer District Office.
Robert D. Hannah served in the 320th Troop Carrier Squadron.
