National Museum of Nuclear Science & History
Arnold Grubbe (1904-2002) was an engineer working for the civilian contractor Crane Company in Oak Ridge, Tennessee.
Mary Elizabeth Barnes was a radiochemist working in the Y-12 Plant in Oak Ridge, Tennessee from 1946 to 1952.
Elsie Mae Freeman was born in Missouri in 1900. She graduated high school in Chicago. After graduating, Elsie was recruited to work in a lab at the University of Chicago in 1919.
