National Museum of Nuclear Science & History
Marle Velde worked for the Kellex Corporation at the K-25 Plant.
George Riggenbach was a staff worker at Los Alamos during the Manhattan Project.
Fred H. Greene was an engineer who worked on the K-25 Plant in Oak Ridge, TN, for Union Carbide and Carbon.
Willard Waite was a staff worker at Los Alamos during the Manhattan Project.
