National Museum of Nuclear Science & History
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.
Samuel Allan Kline was a student majoring in physics at the University of Chicago before going to Los Alamos to work as a physicist.
Marian S. Baumann was a laboratory technician at the Metallurgical Laboratory in Chicago during the Manhattan Project.
E. S. Bettis worked for the Tennessee Eastman Corporation at the Y-12 Plant.