Thank you Carolyn. I had the following, but it needs to be cross-checked. John Dalrymple, 2nd Earl of Stair, bap. 6 Aug 1673 m. 7 March 1714 Eleanor Campbell (widow of James Primrose, 1st Visc. Primrose) 4th dau of James Campbell, 2nd Earl of Loudon by his wife Lady Margaret Montgomerie. John Dalrymple d. 9 May 1747 succeded by his nephew James Dalrymple, son of Col. Wm Dalrymple of Glenmuir. Some records show the 2nd Earl as having married clandestinely in 1708. The 2nd Earl of Stair was Colonel of the Inniskillin Dragoons 1714/5-34 and 1743-45. He was Colonel of the Scots Greys 1745-47. On 31 March 1747 he appointed his nephew John Dalrymple b.1720, 1st son of his youngest brother (George Dalrymple of Dalmahoy bap 10 Mar 1680) as his successor, but this was contested by his bro's (Col. Wm Dalrymple of Glenmuir bap. 10 Oct 1678) son, James Dalrymple. This nephew's claim was found to be a valid claim as to the estates, but invalid as to the peerage titles, presumably on the ground of having been executed after the union. Therefore, James Dalrymple, 3rd of Stair, advocate, succeeded 9 May 1747 his uncle in the Earldom of Stair, but not to the family estates and d. 30 Nov 1760 at Castle McDouall, buried at Stoneykirk, unmarried.