National Museum of Nuclear Science & History
J. J. Donovan worked for the H. K. Ferguson Company.
Edward M. Josefiak served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Some Punkins.
Marte Previti was a part of the Alsos Mission, a Manhattan Project effort in Europe to discover the progress of the German atomic project.
Twichell worked at 200 West Area at Hanford during the Manhattan Project.