National Museum of Nuclear Science & History
Ray Mettelka worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jose Quintana was a staff worker at Los Alamos during the Manhattan Project.
Hildebrand worked for Stone and Webster Engineering Corporation.
C. P. Coleman worked for the J.A. Jones Construction Company.
John Vach was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.