Chatham Manor the Custis slaves as executor after his in-laws' deaths. The plantation included an orchard, mill, and a race track where Fitzhugh's horses vied with those of other planters for prize money. Fizhugh named the mansion after the British parliamentarian William Pitt, 1st Earl of Chatham, who championed many of the opinions held by American colonists prior to the Revolutionary War. Flanking the main house were dozens of supporting structures: slave quarters, a dairy, ice house, barns, stables. Down on the river were fish traps. Fitzhugh sold the Chatham plantation to Major Churchill Jones, who had served under Col. William Washington
Earl of Seaforth would have been the 6th earl, helped the British government during the rising of 1745, and was a member of parliament for some years. His son Kenneth Mackenzie was created Baron of Ardelve and Viscount Fortrose in the Peerage of Ireland in 1766 and Earl of Seaforth in 1771, also in the Peerage of Ireland. However, these peerages became extinct when he died in August 1781. Although there were still heirs to the older earldom, this remained under attainder. Kenneth raised the regiment of Highlanders, the 78th (later known as 72nd) in 1778, known later as the 1st battalion of