National Museum of Nuclear Science & History
E. H. Frye worked for the Tennessee Eastman Corporation at the Y-12 Plant.
O'Brien worked for Stone and Webster Engineering Corporation.
Richard “Dick” H. Nelson served as a private first class in the 509th Composite Group. He was the radio operator on the Enola Gay during its mission to Hiroshima.
Wallace Addis worked for the Kellex Corporation at the K-25 Plant.