National Museum of Nuclear Science & History
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Ray Genereaux, born in Seattle in 1902, a graduate of Stanford and Columbia, was design project manager for the chemical separation facilities at Hanford.
Tom Mulcahey was a staff worker at Los Alamos during the Manhattan Project.
Helene Stark was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.