- Title: NJ Genealogy Magazine. Author: Genealogy Magazine of New Jersey. Media Type: Book. 1957 Volume 32, Jan/April, p. 1. Stokes, Albert L., "Bible Records Coate, Gardiner, and Wright Families"
- Title: Coate: The Ancestors and Descendants of Marmaduke Coate of SC and Ohio. Author: Park, Ernest S. Publication: 1960 Wolfboro, NH, Notes collected and compiled. Media Type: Book. Note: Brigham Young University Electronic. p. 59. Biosketch.
- Title: NY: Genealogies of Long Island Families. Author: Hoff, Henry B. Publication: 1987, Genealogical Pub. Co. Media Type: Book. Note: New York Genealogical and Biographical Record Allen County Public Library, Fort Wayne, Indiana, Ancestry.com. Vol 1, p. 347. Names Easter (Esther) Dughty as daughter of Jacob and Amy Whitehead and wife of John Coat of Hunterdon Co, NJ and mother of Amy.
- Title: PA Magazine of History and Biography. Author: Historical Society of Pennsylvania. Publication: 1908. Media Type: Book. Note: Google Books Univ. Mich. p. 442. 1728-32 deeds.
- Title: NJ Documents Vol. XXI Calendar of Wills. Publication: 1901, Patterson NJ. Media Type: Book. Calendar of New Jersey Wills, Vol III, 1751-1760" (C-1p.166, 296, E)
- Title: VA Chronicles of the Scotch-Irish Settlement in Virginia. Author: Chalkley, Lyman. Publication: Vol III, published by Mary Lockwood of the DAR, Rosslyn, VA. Media Type: Book. Note: Google Books. p. 293. 1746 suit naming John Coate and John King administrators for Ann Doughty.
- Title: NJ Archives. Media Type: Book. Series 1, Vol 22, p. 70. 1729 John Coats and Esther Doughty of Hunterdon married 22 July.