National Museum of Nuclear Science & History
Harder worked at the 300 Area at Hanford during the Manhattan Project.
B. B. Evans worked at the 200 West Area at Hanford during the Manhattan Project.
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
V. A. Taylor worked for the Roane-Anderson Company.