Joshua Gilpin (1765-1841) was a merchant and paper manufacturer. Thomas Gilpin (1776-1853) went into business with his brother, Joshua, establishing Delaware's first paper mill on the Brandywine Creek. James Riddle (1802-1873) owned James Riddle Son & Co., a cotton mill along the Brandywine. This collection contains miscellaneous papers from the three men, including deeds, property agreements, and a copy of Riddle's will.

Joshua Gilpin (1765-1841) was a merchant and paper manufacturer. Article written by historians Harold B. Hancock and Norman B. Wilkinson, "Joshua Gilpin: an American manufacturer in England and Wales, 1895-1801," based on Gilpin's journals.

Merchant and paper manufacturer Joshua Gilpin (1765-1841) established the first paper mill in Delaware near Wilmington in partnership with his brother, Thomas (1776-1853), and uncle, Miers Fisher. Gilpin traveled extensively abroad from 1795 to 1801. The collection consists of 62 pocket journals and notebooks, the bulk of which date from Gilpin's European tour from 1795 to 1801.

Joshua Gilpin (1765-1841) was a merchant and paper manufacturer in Delaware. This collection is a microfilm of letters in a scrapbook, including correspondence from Gilpin, Thomas Gilpin (1776-1853), and others.

Joshua Gilpin (1765-1841) was a merchant and paper manufacturer. The papers consist of copies of four typescript letters written to Matthew Boulton (1728-1809), a British engineer from Joshua Gilpin.

Joshua Gilpin (1765-1841) was a Philadelphia merchant and paper manufacturer. His notebook describes the process of chlorine bleaching, with drawings and formulae.

Joshua Gilpin (1765-1841) was a Philadelphia merchant and paper manufacturer. The collection includes microfilm copies of Gilpin's notes on the bleaching of pulp in the manufacture of paper, with others on the same subject by Lawrence Greatrake (manager of the Gilpin mills) and William Stidolph.