Hybertie Lansing Pruyn Hamlin (1873-1964) was born in Albany, New York, to John Van Schaick Lansing Pruyn (1811-1877) and Anna Fenn Parker Pruyn (1840-1909). Her father was a U.S. Congressman, representing New York’s 14th District. One of her sisters was Harriet Langdon Pruyn Rice (1868-1939). Hybertie married Charles Sumner Hamlin (1861-1938) in 1898. Charles was a lawyer, delegate to three international peace conferences, and later, the first Governor appointed to the Federal Reserve Board in 1914.

Minute books, photographs, programs, constitution and by-laws, correspondences, papers written and presented to the Junior Friday Morning Club, a VHS tape of the Friday Morning Club “100 Years,” and a cassette tape.

The main photograph collection contains all types of photographic images, from daguerreotypes to contemporary inkjet prints from digital files. The collection also includes glass plate and cellulose acetate negatives. The images are organized into subject series. Most images relate to the people, locations, and events in Albany and other upper Hudson Valley communities. The collection also contains works by contemporary artists.

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.