[1] He was appointed a Justice of the Peace for Ayrshire and Renfrewshire on 9 October 1663, a Commissioner for the Collection of the Excise on 23 January 1667 and a Commissioner of Militia for Ayrshire and Renfrewshire on 3 September 1668.
[1] In 1674, together with the Marquess of Douglas and the Earl of Erroll, Ross raised three troops of horse, which were subsequently disbanded in 1676.
He was in command at Glasgow during the Battle of Drumclog on 1 June 1679, when Claverhouse was defeated by the Covenanters.
[1] Shortly afterwards, he succeeded in beating off a determined attack by the Covenanters on Glasgow itself.
She survived him and married Robert Makgill, 2nd Viscount of Oxfuird, before dying in November 1696.