National Museum of Nuclear Science & History
McLaughlin worked in the 200 West Area at Hanford during the Manhattan Project.
Schrader worked at the 200 West Area at Hanford during the Manhattan Project.
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.
John P. Engel served in the 1st Ordnance Squadron.