National Museum of Nuclear Science & History
Helen Schneider was a staff worker at Los Alamos during the Manhattan Project.
Melvin G. Hopkins served in the 1st Ordnance Squadron.
John C. Lydon, Jr. served in the 603rd Air Engineering Squadron.
Gavin Hadden was an American civil engineer who served as special assistant to General Leslie R. Groves during the Manhattan Project.
C. G. Fellows worked for the Union Carbide & Carbon Corporation.
