National Museum of Nuclear Science & History
J. J. Haynie worked for the J.A. Jones Construction Company.
Ralph N. Devore served as a captain in the 393rd Bombardment Squadron. He was the airplane commander regularly assigned to the B-29 Next Objective.
Svoboda worked for Stone and Webster Engineering Corporation.
George Placzek was a Czech physicist. He was born in Brno, Moravia, which was then part of Austria-Hungary but today is in the Czech Republic.