Consists of miscellaneous letters and documents of Boudinot, many of which concern his land dealings. Historical figures and significant New Jersey correspondents represented in the collection include Samuel Bayard, Elias Dayton, John Dickinson, Ashbel Green, William Livingston, James Madison, James Morris, Lewis Pintard, and George Simpson. Included are Boudinot's drawing and description of the Boudinot coat of arms and his letter (23 Oct. 1782) to New Jersey governor William Livingston regarding congressional discussion then in progress concerning the admission of Vermont as the 14th state in the Union.

The following standard abbreviations, or their variation, are used to identify materials in this collection: ALsS = autograph letters signed and ADS = autograph document signed.