The Horsford Family Papers comprises a collection of papers created by various members of the Horsford, Gardiner, and L'Hommedieu families.

Irving Booth was the son of James E. Booth, who was the president of the Monroe County Savings bank and a trustee to the Rochester Institute of Technology (RIT) during the 1890s. Papers include letters and awards of merit related to James Booth's parents, Peter and Phebe; Cooper genealogy information; chattel and deeds; several ribbons; Irving Booth's Cornell University and Alpha Delta Phi ephemera, and miscellaneous ephemera.

This collection consists of a deed for the 100-acre tract, including existing mills, dated 1792. Signed by Ebenezer Allan.

Signed by George Clinton, 1st governor of New York State (later the 4th vice-president of the United States) naming Joseph Blackmore to the rank of Lieutenant in the Herkemer [sic] County militia. Also signed by George Hopper, Secretary.

9 1/2" x 15" folded paper. Dated July 15, 1798. Sent by Astor from Ballstown Springs to Abraham[?] Tomlinson in Schenectady. Content of letter is concerned with the fur trade in New York State, and the quality and prices of furs Astor was interested in purchasing. Valued at approximately $10,000.

This collection consists of an agreement for the sale of the Fourth Range in Township Number Thirteen from Daniel Penfield to Salmon Fuller and Caleb Hopkins. Signed by Zachariah Seymour for Penfield. (Seymour was brother-in-law to Oliver Phelps.) This document laid the basis for the foundation of the town of Penfield. It dates to 1805.

This collections contains legal documents, business documents, and letters relating to Aristarchus and father Henry Champion. The legal documents relating to Aristarchus and Henry Champion date from 1806-1830. The other documents relate to Aristarchus Champion and his business and estate, and they date from 1831-1892 with some undated material.

This collection consists of calendars and carrier greetings dating between 1828 and the present. The carrier greetings and the majority of the calendars were produced by local newspapers for distribution to subscribers. While much of the collection was assembled for historical interest, recent calendars have largely been collected due to their image content. For example, the Erie Canalway calendars represent the winners of an annual photographic contest, and the calendars are retained as much for aesthetic reasons as for informational ones. This is an artificial collection assembled by the Local History & Genealogy Division of the Rochester Public Library.

This collection consists of the records of Obed Hussey, inventor of an early mechanical reaper. The materials date between 1833 and 1916, with the bulk of the material dating between 1852 and 1858. The materials include letters, trade catalogs, advertising images, and popular magazines.

The papers document the personal and professional life of Charles Cyril Martin and include proposals on improvements to the Brooklyn Bridge.