-  Sturdevant and Mathews Family Collection, 1807–1853, “Family Rekard,” CHL. 1820 U.S. census, Canandaigua, Ontario Co., New York, p. 215, Anson Matthews, NARA. Vital Records of Conway, Massachusetts, to the Year 1850 (Boston: New England Historic Genealogical Society, 1943), 168. “Family Tree,” database, FamilySearch (https://familysearch.org, accessed Mar. 2016), Sophia Mathews L7TL-KDX . 1880 U.S. census, Mason, Taylor Co., Iowa, ED 211, p. 32, Sophia Reels, NARA. Petition of Administrator or Executor for Final Settlement of Account, County Court, Saunders, Nebraska, MerrittC43, scan0026, Ancestry.com (http://trees.ancestry.com, accessed Sept. 2014), Sophiann “Sophia” Mathews. Find a Grave, database and images (http://findagrave.com, accessed Mar. 2016), memorial no. 15702117, Sophia Mathews Reals; Memory Cemetery, East River Township, IA.