The materials in this series consist primarily of pre-1800 papers regarding the Paul family and other related families. Included is family genealogy and indentures. The Thomas Paul papers, 1783-1798, consist of miscellaneous correspondence and records of his mercantile business, personal affairs, and his estate. Material relating to the Stadelman family and Elizabeth Stadelman Paul, primarily accounts and estate information, are also in this section.

This section contains the personal papers of Comegys Paul and business papers from the various companies with which he was involved. The items in box 2 relate to Paul's personal affairs and contain his letters, writings, accounts and indentures. Canoge, Paul & Co., the first company Paul founded, is represented in this series by partnership and general correspondence, receipts, bills, checks and invoices. Material from Comegys Paul & Co. includes correspondence and legal papers. Additional personal material pertaining to Comegys Paul and his family can be found in box 4. This material includes account books and several miscellaneous volumes, including lists of books and land surveys. Correspondence between Theodore S. Paul and Comegys Paul and business papers of Theodore Paul comprise the final sections of this series.

In this series are various letters written to family members, many while traveling abroad. John Marshall Paul and his cousin John Rodman Paul traveled to Europe together (1823-25) and their letters home are found here. Letters to and from a variety of different family members, including Henry Neill, John Rodman, Elizabeth Neill Paul, and Margaret Paul are in the second section of this series, which spans fifty years. Also in this series are letters from John Rodman Paul, Jr., from his trip to Europe in 1872. The final subseries contains the letters of Sidney Paul, John Rodman's sister.

The papers in this series represent Henry Neill Paul [I] and [II]. Henry Neill Paul [I's[letterpress books, 1858-1886, 1890-1899, contain letters on property in St. Paul, Minn., his other real estate holdings, Paul family estate business, letters written as an officer of the Manufacturers Land and Improvement Company, Gloucester Land Company, and the Pennsylvania Company for Insurance on Lives and Granting Annuities. His personal ledger, 1858-1859 and journal, 1879-1888, are also present. Also included are the Memorial Missionary Society of Calvary Presbyterian Church minutes for the time when Mrs. Elizabeth Stadelman Paul served as secretary, 1870-1883. Henry Neill Paul [II], papers represent his personal business, as well as his bibliophilic and genealogical interests. His papers include incoming and outgoing correspondence, arranged in rough chronological order. The final section of the series is composed of a small number of letters to Margaret Butler Paul, the wife of Henry Neill Paul [II].

Mary Pope married Frank Ellinwood Paul, the son of Theodore Paul and brother of John Marshall Paul. This series contains her papers and those of her two children. Included is personal and family correspondence, 1868-1920, together with some correspondence of Augustus Russell Paul, 1900-1937, mainly on agricultural subjects.

This series includes miscellaneous letters, mainly to family members not previously represented in the collection, wills, excerpts from Claypools Daily Advertiser, miscellaneous volumes and deeds.