National Museum of Nuclear Science & History
M. L. Olsgaard worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helen J. Arson was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Dorothy E. Carter was a lab technician in the Health Division 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.