Contains an autobiography, portrait, and will by Kane, providing a biographical summary of his life and activities. Materials date from between 1849 and 1857.

Contains genealogical information, biographies, correspondence, receipts, and other materials related to Kane's ancestors and other members of the extended Kane family. Items document personal activities, family relations, business ventures and transactions, and other topics. Materials date from between 1773 and 1916.

Letter from D. Codwise to (Mr.) Constable, sends $250 along with some business advice, dated April 12, 1827.

Letter from Gouv Morris to (Mr.) Constable, Lercey complains of his bills and believes there was a mistake made in the accounts, dated August 3, 1797.

Document of Gouv Morris, the books in the entry and affidavit are my property and not imported or intended for sale, dated July 4, 1796.

Letter to Don Diego Gardoque and mentions Mr. Constable, expresses gratitude for the information of the vessel’s departure for Barcelona, dated June 24, 1786.

Letter from Jared Ingersoll to William Constable, request to forward a letter to Mr. Ellire, dated June 8, 1789.

Letter from H. Labarte to William Constable, written in French, dated March 29, 1803.

Document, a four year indenture of John George Hoes to Francis Wade for a loan that paid his passage from Rotterdam, dated September 21, 1773.

Letter from Mrs. Burr to Mr. Constable, encloses a list of stores (not there) required by the Captain for the Harpers, dated June 6, 1788.