National Museum of Nuclear Science & History
Ossie Parker worked for the Edenfield Electric Company.
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
John Vach was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Connelly worked at the 100-D Area at Hanford during the Manhattan Project.
James Zachary served in the 1395th Military Police Aviation.