National Museum of Nuclear Science & History
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.
General Lyle Edward “Skip” Seeman was a United States Army Corps of Engineers Officer. He was also a Manhattan Engineering District Special Assistant to General Groves at Los Alamos On May 3, 1945 Col Seeman was appointed by General Leslie Groves to be his Corps of Engineers liaison at Los Alamos.
Harris worked for Stone and Webster Engineering Corporation.
