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National Museum of Nuclear Science & History

Francis E. Mask

Project StaffHanford, WA

Manhattan Project VeteranProject Worker/Staff

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James F. Smith Jr.

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Attended Pennsylvania State University.

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Vosmer worked at the 300 Area at Hanford during the Manhattan Project. 

Leslie R. Groves

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Lieutenant General Leslie Groves (1896-1970) was a United States Army Corps of Engineers officer and director of the Manhattan Project.