The Friends and Services series is primarily John D. Rockefeller, Jr.'s personal correspondence with his friends and relations. Other files deal with a variety of support, service, and administrative activities such as the operation of the Family Office, family membership in social clubs, family doctors, management of family garages and stables, and arrangement for the biographies of John D. Rockefeller and John D. Rockefeller, Jr.

This series consists of all material relating to John D. Rockefeller that could not be placed in the John D. Rockefeller papers (FA002) due to limitations of date and type of material. Of special interest are the correspondence files, including those related to boards, the Rockefeller family, and investments; and the files on the Forest Hill, Golf House, and Pocantico Hills properties.