Collection relates mostly to the business affairs of William Cooke, as attorney and tobaco commisson merchant; about 150 letters (1785-1819); accounts; papers on the settlement of the estates of John Cooke and Mrs. William Young and John O'Donnell.

The collection is made up of two principal series: the papers of Clement Hill, 1683 to 1819, and the business accounts of Clement Hill, 1701 to 1823. Also contained within the collection are land survey books dating from 1670 to 1715, mostly relating to Clement Hill, Sr. The bulk dates for both the papers and the accounts are between about 1760 to 1785. Gaps exist both before and after these dates.