Papers of a Kingston, New York family include correspondence (1740-1930); account books (1768-1770); a daybook (1758-1779); ledgers (1776, 1791-1808); journals, diaries, family Bibles, legal papers (1753-1804), and memorabilia. The bulk of the collection consists of business records of Cornelius Wynkoop and his sons, Cornelius C. Wynkoop and John C. Wynkoop.

Account book for an 18th century tailor and farmer in Simsbury, Connecticut.

Collection of ledgers from a wide range of small businesses based in the Northeastern United States, from Philadelphia to Old Town, Maine, including many in New Jersey. Business areas represented range from banking and butchers to taverns and wagon-makers.

Miscellaneous material pertaining to commercial activity in Salem, Massachusetts in the late 18th and early 19th century.

An inventory and bequest. A notarial document done for Thomas Maurice Bronod, an attorney in Paris.

Day books kept by the proprietor(s) of a general store selling dry goods and products from the West Indies in the Hudson Valley of New York and Connecticut. The store may have been located in the Nine Partners Tract, in the vicinity of what is now Hyde Park, New York.

Daybook of Robert Adams, proprietor of a general store in Johnstown, New York. Includes transactions with some well-known individuals such as Sir William Johnson (1715-1774) and his sons and sons-in-law, and Joseph Brant (1742-1807), also known as the Mohawk chief Thayendanegea. Also a microfilm version.

Account book of merchants in 18th century New York. Eastern New York State, Dutch families represented.

Account book for Haring's general store and other financial activities.

The Abbe (Abbey) family papers include records relating to the Abbe family. The Abbe family, which consisted primarily of Richard T. Abbe, his wife Helen Woods Abbe, and their daughter Olive Abbe Jones, corresponded with many family members and business associates before and during the Civil War. This collection contains deeds, legal records, correspondence, business records, and other papers of the family.