George had six other daughters - Anne, Janet, Susanna, Lilias, Ann,
Barbara, and Elizabeth, all of whom died young or unmarried.

He died in 1773, when he was succeeded by his eldest surviving son,

III. JOHN MACKENZIE, third of Allangrange, who at an early age was appointed Examiner of Customs in Edinburgh. He married, first, Catherine, eldest daughter and co-heiress of James Falconer of Monkton (marriage contract 1781), and grand-daughter of the Right Hon. Lord Halkerton and the Hon. Jane Falconer. By the acquisition of his wife's fortune John was able to devote himself to his favourite agricultural pursuits, in which he was eminently successful in his day. By his wife, who died in 1790, he left issue -

1. George Falconer, his heir and successor.

2. Jane Falconer, who married John Gillanders of Highfield, with issue - (1) Captain George Gillanders, who died without issue; (2) Captain John Mackenzie Bowman Gillanders, H.E.I.C.S., of Highfield, who died, without issue, in 1852; (3) Alexander Gillanders; (4) James Falconer Gillanders, of Highfield, who in 1852 married Amy, daughter of the late Major Charles Robertson of Kindeace, with issue - George Francis Gillanders, late of Highfield, who, on the 21st of December, 1876, married Geraldine Anne Isabella Mary Jane, daughter of Major James Wardlaw, Belmaduthy, with issue - an only daughter, Frances Geraldine; (5) Frances Williamina Gillanders, who died without issue; (6) Margaret Mackenzie Gillanders; (7) Catherine, who married William Inglis, of the H.E.I.C.S.

3. Margaret Bayne, who died young.

4. Margaret Bayne, who also died young.

John married, secondly, Barbara, daughter of George Gillanders, first of Highfield, widow of John Bowman, an East India merchant in London, without issue. She died in 1823. He died in 1812, when he was succeeded by his eldest son,

IV. GEORGE FALCONER MACKENZIE, fourth of Allangrange, who was in 1829 served heir male to his ancestor, the Hon. Simon Mackenzie of Lochslinn, and heir male in general to Simon's father, Kenneth, created first Lord Mackenzie of Kintail in 1609, and to Lord Kenneth's brother, Colin, created first Earl of Seaforth in 1623.

He matriculated arms accordingly in the Lyon Office of Scotland.
On the 9th of January, 1828, he married Isabella Reid, daughter of
James Fowler of Raddery and Fairburn, in the county of Ross, and
The Grange, Jamaica, with issue -