The Thomas Tredwell papers consist of four letters and one document, spanning 1769-1807. The earliest item, a document dated 1769, concerns the building of a schoolhouse, and contains a list of subscribers; Tredwell apparently served as treasurer of the endeavor.
Tredwell wrote three of the collection's four letters. On January 1, 1794, he wrote to his son, Nathaniel, concerning family matters, a shipment of kettles, and the purchase of a slave by an acquaintance. A letter dated February 8, 1804, to his daughter, Hannah (Tredwell) Davis, includes Tredwell's comments on New York gubernatorial candidates, the ratification of the 12th Amendment, and the unpopularity of Aaron Burr. Tredwell's final letter in the collection, also to Hannah, describes the rough month-long journey between Albany and Plattsburgh, across frozen Lake Champlain and provides instruction on how to make an ointment out of roots (May 29, 1807). A "D. Bennett" wrote an additional letter, dated June 12, 1800, to Tredwell's daughter, Mary, concerning news from Norwalk, New York, and expressing sadness at the distance that separated them.