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National Museum of Nuclear Science & History

John L. O’Gara

LieutenantOak Ridge, TN

Manhattan Project VeteranMilitary VeteranProject Worker/Staff
The Chapel on the Hill in Oak Ridge

John O’Gara worked for the United States Engineer District Office.

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Walter Zinn (1906-2000) was a Canadian-American nuclear physicist. Zinn was born in Kitchener, Ontario, in 1906 and graduated from Queens University in 1927.