National Museum of Nuclear Science & History
Gavin Hadden was an American civil engineer who served as special assistant to General Leslie R. Groves during the Manhattan Project.
S. H. Barrett worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Handforth worked at the 200 West Area at Hanford during the Manhattan Project.
Dominick Itzi was stationed at Los Alamos with the Provisional Engineer Detachment (PED) from 1944 to 1946.
