"Northern Veteran Passes"(obituary of John Wainwright). Wilmington, North Carolina: The Wilmington Morning Star, April 18, 1865, p. 5.
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Beardsley, Abigail and Alan Jalowitz. "Honorable Pennsylvanians". University Park, Pennsylvania, Pennsylvania Center for the Book, 2008.
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"Wainwright, John" (Co. G., 2nd Pennsylvania Infantry, 3 Mo.), in "Civil War Veterans' Card File, 1861–1866". Harrisburg, Pennsylvania: Pennsylvania State Archives.
"Wainright, John" (Co. F and F&S, 97th Pennsylvania Infantry), in "Civil War Veterans' Card File, 1861–1866". Harrisburg, Pennsylvania: Pennsylvania State Archives.