Alfredo Chavez

Harold E. Hoover

Harold Hoover was a member of the Special Engineer Detachment during the Manhattan Project. He worked as a filter foreman at the Y-12 Plant, but his real job was in counterintelligence, to ensure no sabotage occurred.

Donald R. Harris

Clarence Sproul

Clarence Grover Sproul worked as a machinist on the Manhattan Project in Los Alamos, NM from January through June 1945.

Jas M. Purcell

Jas Purcell worked for the Roane-Anderson Company.