Susanna married 9th Earl of Eglinton Alexander Seton Montgomerie on 19 Jun 1709 in Kilwinning, Ayrshire, Scotland. Alexander (son of Alexander Montgomerie and Elizabeth Crichton) was born in 1660 in Londonderry, Northern Ireland; died on 18 Feb 1729 in Kilwinning, Ayrshire, Scotland; was buried in 1729 in Kilwinning, Ayrshire, Scotland. [Group Sheet] [Family Chart]

1. Elizabeth Montgomerie was born on 4 Jul 1710 in Kilwinning, Ayrshire, Scotland; died on 19 Feb 1800 in Edinburgh, Midlothian, Scotland.
2. Helen Montgomerie was born on 16 Jan 1712 in Edinburgh, Midlothian, Scotland; died on 14 Jan 1747 in Edinburgh, Midlothian, Scotland.
3. Margaret Montgomerie was born about 1715 in Scotland; died on 30 Mar 1799 in Marylebone, Middlesex, England.
4. Christian Montgomerie was born about 1717 in Scotland; died on 19 Jul 1748 in Kinross-shire, Scotland.
5. James Montgomerie was born on 19 Apr 1718 in Scotland; died on 26 Aug 1724 in Scotland.
6. Charlotte Montgomerie was born about 1720; died on 7 Oct 1732 in Hamilton, Lanarkshire, Scotland.
7. Alexander Montgomerie was born on 10 Feb 1723 in Ayrshire, Scotland; died on 25 Oct 1769 in Kilwinning, Ayrshire, Scotland; was buried in 1769 in Kilwinning, Ayrshire, Scotland.
8. Susan Montgomerie was born about 1725 in Scotland; died on 27 Jul 1754 in Blackadder, Berwickshire, Scotland.
9. Frances Montgomerie was born about 1725 in Scotland; died in Jan 1755 in Scotland.
10. Archibald Montgomerie was born on 18 May 1726 in Kilwinning, Ayrshire, Scotland; died on 30 Oct 1796 in Kilwinning, Ayrshire, Scotland; was buried in 1796 in Kilwinning, Ayrshire, Scotland.
11. Grace Montgomerie was born on 29 Nov 1728 in Ayrshire, Scotland; died on 15 Jun 1751 in Edinburgh, Midlothian, Scotland.