National Museum of Nuclear Science & History
Greenwalt worked at the 300 Area at Hanford during the Manhattan Project.
Ruth Rottman was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
R. M. Pylant worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Marion R. Villarreal served in the 603rd Air Engineering Squadron.
