This series is mostly comprised of materials related to George F. Kennan's family history. The materials were collected by Kennan's daughter, Joan. Some of the materials were consulted by John Lewis Gaddis as part of his research for his biography of Kennan prior to the materials' transfer to the Mudd Library. The materials in this series are occasionally annotated by either Joan Kennan or John Lewis Gaddis.

Series 1: Undergraduate Student Government Records consists of the records and publications of the Undergraduate Student Government from 1982-1997. Campaign and publicity records from the Princeton University Democrats are also included.

The Princeton Undergraduate Student Government public websites provides information on the activities of the university's undergraduate student government.