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.
Nicholson worked for Stone and Webster Engineering Corporation.
Myrack worked in the 300 Area at Hanford during the Manhattan Project.
Riser worked at the 200 West Area at Hanford during the Manhattan Project.
Edward Grzywinski served in the 1395th Military Police Company, Aviation.