National Museum of Nuclear Science & History
Svoboda worked for Stone and Webster Engineering Corporation.
deColongne worked at the 300 Area at Hanford during the Manhattan Project.
Dieter Kurath was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Bob Emigh was in the Navy and worked with Deak Parsons on telemetry for the bombs. He was assigned as the science officer for the planned third bomb.