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National Museum of Nuclear Science & History

Ambrose Knapinski

Technical EngineerK-25 Plant

Oak Ridge, TN
EngineerManhattan Project VeteranMilitary VeteranSpecial Engineer Detachment
Oak Ridge, K-25

Attended the University of Kentucky.

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James F. Margiotta

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Attended Columbia University.

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Eugene S. Grennan served as a 2nd lieutenant in the 509th Composite Group. He was the flight engineer on the Straight Flush during the Hiroshima mission.

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