National Museum of Nuclear Science & History
George Tilley was a staff worker at Los Alamos during the Manhattan Project.
Girdler worked at the 300 Area at Hanford during the Manhattan Project.
Lester Orlan Keen worked as an engineering draftsman at Hanford during the Manhattan Project. His son, Jack Keen, was a young boy at the time.
A. C. Smythe worked for the Tennessee Eastman Corporation at the Y-12 Plant.