The Bowdoin B. Crowninshield papers are comprised of the business and personal papers of the naval architect and shipbuilder.

Manachester Yacht Club records contains the operational records of the Manchester Yacht Club, in Manchester-by-the-Sea, Massachusetts. Includes financial statements, planning documents and drawings, correspondence, reports, and other administrative information. The collection also contains material collected by the club such as photographs.

Two volumes of photographs of yachts and other sailing vessels, and a number of loose photographs, possibly removed from a third volume. Included is a handwritten inventory; however, the numbers on the inventory do not match up to the numbers on the photographs.

The Samuel S. Crocker papers contain design papers relating to Crocker's work as a naval architect and cover 1916 to 1987, with the bulk of the material related to the years 1924 to 1964.

The Two Brothers (Yacht) Records contains records relating to the maintenance and sale of the Two Brothers, a yacht owned by Stephen Wheatland from 1931-1938. Materials include: correspondence related to the yacht; invoices for supplies, docking fees, and upkeep of the yacht; inventories of supplies; and an insurance policy.

The William H. Chamberlain papers contain materials from his time as a naval designer and builder and include financial records, correspondence with clients, and design papers.