Macdonald, John. Interview with Theall, Billa, 1769-1858; (1845-11-20). Experiencing the Neutral Ground of the American Revolution: The McDonald Interviews, WCHS item 477. Transcription courtesy of the Westchester County Historical Society (No copyright - United States).

- Hufeland Index Page 307 - November 20th William Theall of Rye: "Captain Ebenezer Theall of DeLancey's was a brother of my father and a native of Rye. He was killed a short distance west of Roundhill on his return from a foraging excursion at Stanwich and that neighborhood. The spot where he fell is marked by a cliff of rocks a little south of the dwelling house of Mr …