National Museum of Nuclear Science & History
Wood worked at the 100-D Area at Hanford during the Manhattan Project.
L. A. Castellanos worked for the J.A. Jones Construction Company.
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.
Cathcart worked in the United States Engineer District Office.