Macdonald, John. Interview with Post, Frederick, 1762-1850; (1846-10-24). Experiencing the Neutral Ground of the American Revolution: The McDonald Interviews, WCHS item 1710. Transcription courtesy of the Westchester County Historical Society (No copyright - United States).

- Hufeland Index Page 420 - October 24 Frederick Post, of Yonkers: The British army encamped three summers successively about the middle of the war at Mile Square, from Yonkers to Valentine's Hill and so to East Chester. St. [X] Indians cut off at Devoes. - Many of them were found dead afterwards in the woods. [X] Stockbridge Indians - Hufeland Index Page 421 - Emmerick …

Van Courtland's house - The room looked rough. - They slept on the floor.) Jacobus Van Courtland lived in the big house before the war, and moved to New York, where he soon after died, and Fredk. Van Courtland then moved in and lived there, leaving his house on the hill (afterwards H. White's house) into which Colonel Wormb then moved his Headquarters. Augustus Van Courtland …

David Post went out and made a noise on the hill throwing down fences, and calling out: "Here they are, boys!" &c. The robbers then ran. "Colonel Philipse, after he went below, staid awhile at Van Courtland's house. He might have remained at the Mansion house unmolested. A very good landlord. A cave called the Rock House formed by a high projecting rock with another one …