National Museum of Nuclear Science & History
Fred Dennis worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Sotero Romero was a staff worker at Los Alamos during the Manhattan Project.
Britton worked at the 100-B and 100-F Area at Hanford during the Manhattan Project.
Walt Simon, a chemist, was Hanford’s first Operations Manager. Before joining the Manhattan Project, he was plant manager at Wabash River Ordnance Works, a DuPont plant near Terre Haute, Indiana.
