National Museum of Nuclear Science & History
J. M. Brown worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jones worked at the 100-F Area at Hanford during the Manhattan Project.
Johnstone worked at the 300 Area at Hanford during the Manhattan Project.
Margaret M. Emmerson was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.