National Museum of Nuclear Science & History
Hallie Perry was an electrician at Oak Ridge, Tennessee for the Watson-Flagg Engineering Company from 1943 to 1945.
H. R. Chapman worked for the H. K. Ferguson Company.
deColongne worked at the 300 Area at Hanford during the Manhattan Project.
Leon O. (Tom) Morgan was an American chemist who worked on the Manhattan Project and co-discovered the element Americium.
