National Museum of Nuclear Science & History
Mildred Thompson was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Opal MacDonald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Willingham worked at the 200 West Area at Hanford during the Manhattan Project.
George Ruhl worked for the Kellex Corporation at the K-25 Plant.