National Museum of Nuclear Science & History
Mathis worked for Stone and Webster Engineering Corporation.
Mary Elizabeth Barnes was a radiochemist working in the Y-12 Plant in Oak Ridge, Tennessee from 1946 to 1952.
Thomas L. Higgins served in the 320th Troop Carrier Squadron.
Jesse Kupferberg was a Technical Sargeant in the US Army who participated in Project Alberta, the group tasked with transporting and assembling the two atomic bombs in 1945.