The initial inventory of this collection indicates that the collection contains deeds, diaries, property records, receipts, and wills. The family name is also spelled Bogert, Burgert, Borghart, and Burghardt in some records.

Personal and business papers of members of these related families, especially Charles Bush Collins, Lyman R. Lyon, Clinton L. Merriam, Charles C. Merriam and his wife Florence Lyon Merriam. Includes letters, diaries, military commissions, wills, inventories, cash accounts, deeds, and field books relating to their large land holdings in Lewis County, N.Y., their lumber business, and their involvement in politics. Also contains a large number of household bills of the Lyon family.

This collection contains the research files of Florence Christoph. Research notes are on various Albany families such as Winne, Schuyler and the Van Rensselaers. There are no specific dates for when the research was undertaken, but the estimated dates are from the 1960s through the early 2000s. The researched information dates as far back as the late 1600s through the early 1900s.

The Pruyn Family Papers contains documents relating to three consecutive generations of the John Pruyn Family, along with genealogies and personal papers of more distant family relations. An autograph collection of presidents, statesmen, and local historic figures is included. The ownership of 43-45 North Pearl Street is documented from the first sale in 1679 to the last in 1968. The estates of Eleanor Erving, Justine Bayard Erving and Van Rensselaer Pruyn are also documented.

The Ten Eyck/Bronk Family Papers contain the records of the descendants of Jacob C. Ten Eyck (1705-1793), and primarily contain documents relating to family property and financial concerns.

Papers, land records, of the Ten Eyck Family chiefly re: to the Coeymans Patent, Town of Coeymans, Albany County, New York