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.
Neil Bergen was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Andrew Rubis served in the First Ordnance Squadron.
Hensley worked for the Stone and Webster Engineering Corporation.
E. C. Bellamy worked for the Tennessee Eastman Corporation at the Y-12 Plant.