Mainly papers relating to Indian affairs in New York and to Brant's life, 1763-1776. Draper's notes include bibliographical references to the Devil's Hole massacre (1764) and a bibliographical chronology on Mohawk negotiations and military participation in 1776.

Other notes and correspondence give information on several topics: Brant's participation in the war against the Susquehanna Delawares (1764); his residences and other sites associated with him in the Mohawk Valley; his trip to England (1775-1776); American attempts to secure Canada for the patriot cause, including the intelligence mission of John Brown (d. 1780), the siege of Fort St. John (September 1775), and the battle of the Cedars (May 1776) near Montreal.

For a few Americans serving in the Canadian campaign there are biographical or genealogical notes and documents: Ezekiel Brown; John McKinstry, his wife Elizabeth Knox, and their children; Jonathan Maynard and his wife Lois Eaton; Richard Montgomery; Adiel Sherwood (1749-1824); James Wesson; and Benjamin Whitaker. Two clippings discuss Indians in freemasonry.