The Averell Family Papers consist primarily of the personal, business, and legal papers of William Holt Averell of Cooperstown, New York. The collection also includes a substantial number of papers relating to or written by James Averell, Jr., William Holt Averell's father. In addition, the collection includes papers relating to other members of the Averell family and genealogical information regarding the Averell, Carter, Slayton, and Waldby families. The date range is mostly from 1790 to 1880.

The Burr - Hamilton Duel Collection contains correspondence between Alexander Hamilton and Aaron Burr and their seconds, Van Ness, and Pendleton, before the duel (June 18 - July 9, 1804); and correspondence and statements made after the duel, by Burr, Van Ness, and Pendleton including eye-witness accounts of the duel by Van Ness and Pendleton, the only living witnesses besides Burr himself (July 11, 1804 to Mar. 5, 1805). Also included are letters by Aaron Burr and documents pertaining to Burr (1793-1828). These items do not concern the duel.

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.

Contains Carl Carmer's literary manuscripts and other writings with related correspondence and research notes. This includes undated and unpublished manuscripts, school essays, speeches, early poems, CBS broadcast scripts, published articles, galleys, notebooks, publicity, reviews, and fan mail. The collection also contains financial records, newspaper clippings, writings of other authors, autobiography, pamphlets, family and other photographs, biographical data, greeting cards, songs and music, art books, sketch pads, illustrations in various stages for Carmer's manuscripts, and some family papers.

This collection documents the courtship and marriage of Harold Cheetham and Ella May Wilson, Williamson, Wayne County, NY.

Contains correspondence, unpublished poems, and essays by William W. Christman, as well as pamphlets, scrapbooks, and photographs. Also includes research notes, final typescript, and galley proofs for Henry Christman's book.

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.

Papers of Judge William Cooper, the founder of Cooperstown, and of his children, Hannah, Isaac, James Fenimore, Samuel, and William. A large part of the collection concerns the land and financial transactions conducted by Judge Cooper and his direct descendants. Of particular interest are deeds, leases, bonds, and mortgages that document his involvement in the settling of Cooperstown and Otsego County, N.Y. His papers also include correspondence, land books, and bankbooks. Isaac Cooper's papers include the contract for building his home, Edgewater. James Fenimore Cooper's papers include correspondence and fragments of literary manuscripts. The collection also contains scattered letters from a few in-laws and grandchildren of Judge Cooper, such as Susan Fenimore Cooper, as well as three photograph albums.

Agreements, orders for supplies and raw materials, reports from company managers and factory foremen, annual and monthly reports, ledgers, and material on company personnel and investments. Correspondence between partners Merritt J. Corbett and John L. Stuart, and with managers of subsidiary companies at Corbett, East Branch, Harvard, Livingston Manor, and Peakville, N.Y., St. Mary's, Milanville, and Sherman, Pa., and Wells, Mich.

Correspondence of Universalist minister, Cuthbert Collingwood Gordon. The letters span 1850-1883. The bulk of the collection consists of letters from Universalist ministers and Universalist Society members in New York State and New England.