National Museum of Nuclear Science & History
M. E. Gregson worked for the Roane-Anderson Company.
Paul W. Gruning served as a 2nd lieutenant in the 393rd Bombardment Squadron. He was the bombardier on the B-29 Jabit III on the Hiroshima mission.
Wilbur H. Lyon served in the 320th Troop Carrier Squadron.
Rupea worked at the 300 Area at Hanford during the Manhattan Project.