National Museum of Nuclear Science & History
J. R. Thompson worked for the J.A. Jones Construction Company.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Freddie Denton served in the 1st Ordnance Squadron.
H. A. Killebrew worked for the Tennessee Eastman Corporation at the Y-12 Plant.
A. H. Weil worked for the United States Engineer District Office.
