National Museum of Nuclear Science & History
Manning worked for Stone and Webster Engineering Corporation.
Joseph Mcguire was a chemist with the Special Engineering Detachment at the Y-12 Plant in Oak Ridge, Tennessee.
Max Friedman was an American physicist. One of J. Robert Oppenheimer‘s bright young pupils at the University of California, Berkeley during the 1930s, Friedman’s career as a physicist was derailed by his leftist politics.