National Museum of Nuclear Science & History
WIley Thomas, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Sloan worked at the 300 Area at Hanford during the Manhattan Project.
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.
Opal MacDonald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.