National Museum of Nuclear Science & History
D. V. Zehner worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Margaret Hoffarth was born in Colorado and moved west with her parents, traveling to Idaho in a wagon train.
Mary Fair worked as a lab assistant at the Metallurgical Lab at the University of Chicago. She was not sure of the purpose of her work, but often used radiation detecting devices in the experiments.