John MacGregor, 8th of Glengyle (1708-1774) (1708–1774) Parents Mary Hamilton Gregor 'Ghlum Dubh' MacGregor, 7th of Glengyle Children Robert MacGregor Jean MacGregor Donald MacGregor Dorothy MacGregor James MacGregor, 9th of Glengyle Siblings Jean MacGregor Jean MacGregor Catherine MacGregor Partners Jean Buchanan