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- [S3] Ancestry.com. 1860 United States Federal Census [database on-line]. Provo, UT, USA: The Generations Network, Inc., 2004. Original data: United States of America, Bureau of the Census. Eighth Census of the United States, 1860. Washington, D.C.: National, Roll: M653_865; Page: 0; Image: 519.
- [S255] Donnelly Thomas H., A Genealogy of the Family of Richard Howell of Mattituck, Southold Town, Long Island, New York, to seven generations (Bowie, MD: Heritage Books, circa 2000)., p. 188, 324ff.
- [S255] Donnelly Thomas H., A Genealogy of the Family of Richard Howell of Mattituck, Southold Town, Long Island, New York, to seven generations (Bowie, MD: Heritage Books, circa 2000)., p. 188.
- [S255] Donnelly Thomas H., A Genealogy of the Family of Richard Howell of Mattituck, Southold Town, Long Island, New York, to seven generations (Bowie, MD: Heritage Books, circa 2000)., p. 324ff.
- [S257] International Genealogical Index [IGI] (Salt Lake City: Family History Library).
- [S255] Donnelly Thomas H., A Genealogy of the Family of Richard Howell of Mattituck, Southold Town, Long Island, New York, to seven generations (Bowie, MD: Heritage Books, circa 2000)., p. 324.
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