National Museum of Nuclear Science & History
A. C. Samford worked for the J.A. Jones Construction Company.
Halm worked at the 300 Area at Hanford during the Manhattan Project.
Franklin MacGregor served as a second lieutenant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
William L. Murphy was a Technical Sargeant in the US Army who worked as part of Project Alberta, the team that transported and assembled the two atomic bombs in July and August 1945.