The Campbell Family Collection, 1790s -1870s, covers four generations and documents the history of the family in Cherry Valley, Otsego County, NY in the earlier part of the nineteenth century. The main focus of the collection is the correspondence of Judge William W. Campbell and his manuscript "Annals of Tryon County." Also included are papers of Cleveland J. Campbell, Helen S. Campbell, Douglas Campbell, William A. Campbell, Henry J. Campbell, Samuel Campbell, Samuel Starkweather, Harriet Bowers Paige Campbell, James S. Campbell, and other family members. Also included an early nineteenth century manuscript music book, survey maps of Cherry Valley and Belvedere, and the correspondence, medical observations, and financial records of William B. Campbell.

Collection contains materials from Stewart's war career including letters, documents, reports, and returns with many references to the difficulties of obtaining, transporting, and paying for Army supplies. Also, materials from Stewart's pre- and post-war career including letters, memos, deeds, receipts, genealogical data, and accounts of land investments and surveys in NJ and PA, and the expulsion of Connecticut settlers from the Wyoming Valley, PA and their resettlement after the war. Correspondents include James Tilghman, Amos Ogden, John Penn, Alexander Patterson, family members, and many notable military figures.

Collection consists of correspondence and business documents relating to the extensive land holdings and agricultural business of Jacob S. Glen, 1773-1859, Town of Glen, Montgomery County, NY. Included are materials relating to leases, farms, land, real estate, and hired labor: business invoices, bills and invoices for personal and household goods, labor agreements, and assorted legal documents relating to his land holdings. Many of the items in this collection are written or docketed in Glen’s hand. Of note is a detailed 1857 auction notice that lists Glen’s farm property and goods.

Letters, invoices, accounts, and land, legal, and military papers of Jellis/Jelles Fonda of Montgomery County, N.Y. Also contains two ledgers of his general store in Caughnawaga (Fonda), Montogmery County, N.Y. Subjects of note include Fonda's trade with London markets and with Native Americans, many of whom were customers in the ledgers. Includes some photocopies.