National Museum of Nuclear Science & History
P. D. Simpson worked for the Poe Piping & Heating Company.
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.
Christiansen worked at the 200 West Area at Hanford during the Manhattan Project.
Edward Parker worked for the Kellex Corporation at the K-25 Plant.
