Series II. Jonathan Curwen (1640-1718) Papers contains his shipping business, legal, and family papers.

Subseries A. Business Papers includes shipping correspondence and accounts of cargo that Jonathan consigned to other vessels. Ships' papers, which are filed alphabetically, contain accounts and receipts for cargo consigned to other merchant vessels.

Subseries B. Court, Legal and Estate Papers is comprised of a variety of papers. The bulk of Jonathan's legal papers contains correspondence and accounts that were generated from Jonathan's ownership, and legal battle over the Cape Porpoise River Falls Mill in Wells, Maine. Filed with the legal papers are court papers, reflecting Jonathan's years as a judge in Salem. The majority of these court papers are depositions from Salem residents. Of note are the January 17, 1692 letter from Samuel Parris concerning some of his parishioners' loss of estate, and the 1701 will of John Gedney, which was witnessed by Jonathan. The estate papers contain several inventories of his estate and accounts regarding the settlement by his son-in-law, James Lindall. Johnathan's miscellaneous legal papers include deeds, his wife, Elizabeth's, will, and a distant in-law, Richard Russell's, 1674 will.

Subseries C. Family Papers incorporate the John Curwen estate papers, Margaret Thatcher estate papers, Jonathan's immediate family papers, and his in-laws' papers. The John Curwen and Margaret Thatcher estate papers contain accounts and receipts for the settlement of the estate of Jonathan's brother, John, and correspondence, funeral expenses, and accounts for Jonathan's mother-in-law, Margaret Thatcher. The bulk of the family papers includes domestic accounts for Jonathan's family. Jonathan's in-law papers contain correspondence from in-laws Sergeants and Gibbs, and letters, accounts, and receipts for Jonathan's brother-in-law, William Browne and his family.