IV. ALEXANDER MACKENZIE, fourth of Ballone, retoured to his father in 1752. He married Catherine, daughter of George Mackenzie, II. of Gruinard (sasine in 1742, several years after the marriage), with issue -
1. Alexander, his heir and successor.
2. Captain John, who succeeded his brother Alexander.
3. Mary, who married her cousin, Roderick Mackenzie, III. of Kernsary (sasine in 1762), with issue.
4. Catherine, who married Colin Knight, in the Lewis, with issue.
5. Isobel, who married the Rev. Alexander Stronach, minister of Lochbroom, with issue.
6. Barbara, who died unmarried.
7. Alexandrina, who married Alexander Macrae, Strathmore of Lochbroom, with issue.
Alexander died in 1755, and was buried in Lochbroom. He was succeeded by his eldest son,
V. ALEXANDER MACKENZIE, fifth of Ballone, who was retoured to his father in 1756. He was at the same time served heir male in special to his great-grandfather, who died in 1724. He died unmarried, having been drowned at sea in 1762, when he was succeeded by his brother,