This collection contains the papers of Asa Pingree created during his life, as well as the papers relating to the administration of his estate.

Series I. Personal Papers is divided into two subseries. Subseries A. Financial and Legal Records include documents created during Pingree's life that relate to running the farm he inherited from his uncle, Thomas Perkins, and deeds documenting purchases of surrounding pastures to expand the farm. There are also booklets outlining the Rules and Orders to be Observed in The Senate of the Commonwealth of Massachusetts in which Asa's name appears on page 41 under the list of members of the Senate of 1843. Subseries B. Correspondence is comprised of a dozen letters, calling cards, and invitations.

Series II. Estate of Asa Pingree includes copies of the wills of Thomas Perkins and Asa Pingree; inventories of the estate; notes receivable; and receipts and correspondence of the trustees. Of particular interest in the estate papers is a statement by David Pingree, stating what transpired between him and his Aunt Mary just after his uncle's death, and the subsequent papers relating to Mary Kilborn Pingree's actions to contest of Asa Pingree's last will and testament.

Series III. Topsfield Farm is comprised of documents that relate to the family land in Topsfield, Massachusetts. This series includes ledgers relating to the running of the farm and of grass sold at auction after Asa's death; deeds for land bought and sold by heirs; and David Pingree's (1841-1932) research on the land owned by the family.