National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Twichell worked at 200 West Area at Hanford during the Manhattan Project.
Allan L. Moore served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 The Great Artiste.
Harry Schulman worked for the A. S. Schulman Electric Company.
