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- [S7656] Rhode Island Town Births and Baptisms Index, 1639-1932, on familysearch.org.
- [S8640] Find a Grave page for Elizabeth Mathewson Whipple., year only.
- [S8650] Gordon L. Remington and Roberta Stokes Smith, "Thomas Clemence of Providence, Rhode Island and Four Generations of His Descendants." The New England Historical and Genealogical Register 155:131, 2001.
- [S8651] The Early Records of the Town of Providence, Volume V. Providence, Rhode Island: Snow and Farnham, 1894.
- [S679] The Genealogical Dictionary of Rhode Island by John Osborne Austin. Albany, New York; 1887. Corrected edition, including corrections by John Osborne Austin and material by G. Andrews Moriarty from The American Genealogist. Baltimore: Genealogicical Publishing Co., 1969, 1978., date only.
- [S8653] "Louis Clark Mathewson." The New England Historical and Genealogical Register 106:148, 1952.
- [S8652] Rhode Island, Scituate Probate and Council Records book 1, p. 26, estate of James Mathewson Jr., 1735/6, linked from familysearch.org.
- [S8653] "Louis Clark Mathewson." The New England Historical and Genealogical Register 106:148, 1952., month and year only.
- [S8635] Rhode Island Marriages, 1724-1916, on familysearch.org.
- [S8653] "Louis Clark Mathewson." The New England Historical and Genealogical Register 106:148, 1952., date only.
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