National Museum of Nuclear Science & History
Ledbetter worked in the 200 East Area at Hanford during the Manhattan Project.
R. R. Manganielo served in the 509th Headquarters and Base Services Squadron.
Vivian Stark was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Lawier worked in the 300 Area at Hanford during the Manhattan Project.
