National Museum of Nuclear Science & History
Frank Graham worked for the Midwest Piping and Supply Company.
Beltzner worked at the 100-D Area at Hanford during the Manhattan Project.
Colleen Frahm Lockmiller was a lab technician in the Y-12 Plant at Oak Ridge, Tennessee from 1944 to 1947.
Fred Houston worked for the United States Engineer District Office.
Daniel Pfaff was a staff worker at Los Alamos during the Manhattan Project.
