Sheehan, Michael J. F. (28 Mar 2019). "Henry Champion: An Officer Resigns". Journal of the American Revolution (بالإنجليزية الأمريكية). Archived from the original on 2019-04-01. Retrieved 2019-03-28.
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Sheehan, Michael J. F. (28 Mar 2019). "Henry Champion: An Officer Resigns". Journal of the American Revolution (بالإنجليزية الأمريكية). Archived from the original on 2019-04-01. Retrieved 2019-03-28.