National Museum of Nuclear Science & History
Cummins worked for Stone and Webster Engineering Corporation.
John Tempka (1923-2017) was an American engineer. Tempka was born in Boydsville, Ohio. He was studying at the University of Detroit when he was recruited to join the U.
Swan Swanson was a staff worker at Los Alamos during the Manhattan Project.
A. M. Hartman worked for the Roane-Anderson Company.
