National Museum of Nuclear Science & History
V. J. McDonald worked for the Comstock-Bryant Electric Company.
Ledbetter worked in the 200 East Area at Hanford during the Manhattan Project.
Anton Kegl was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dorothy Vance worked for the Edenfield Electric Company.
Henry Faul was a geologist working on Enrico Fermi's team at the University of Chicago. He was responsible for prospecting uranium ore in Colorado and Utah.