The Park family papers are composed of correspondence and other papers of Park family members and of correspondence and other documents collected and preserved by Park family members for their autograph or historical value. The papers include six volumes of mounted autograph items as well as unbound documents of American and European authors, scientists, military leaders, statesmen, and clergymen. The papers include a large collection of documents relating to the history, faculty, and administration of Phillips Academy, Andover, Massachusetts and of the Andover Theological Seminary. Particularly numerous are the personal and professonal papers of Eliphalet Pearson. The papers also include numerous documents of John Hoff Duke of Charleston, South Carolina, as well as estate papers of Augustine Prevost and documents relating to the early history of Wrentham, Massachusetts. Papers of Park family members include intra-family correspondence and items of related Burr, Edwards, and Reeve family members. Marion Edwards Park's correspondence documents her college years at Bryn Mawr. Correspondence with M. Carey Thomas in the 1920s details the transition of leadership at the college.