Elizabeth married John Ponsonby on 22 Sep 1743 in Derby, Derbyshire, England. John (son of Brabazon (1st Earl of Besborough and Viscount duncannon) Ponsonby and Sarah Margetson) was born on 29 March 1713 in Leinster, Kilkenny, Ireland; died on 12 December 1789 in Kilkenny, Ireland. [Group Sheet] [Family Chart]

1. William Brabazon Ponsonby was born on 15 September 1744 in Co, Kilkenny, Ireland; died on 5 November 1806 in London, London, England.
2. Catherine Ponsonby was born on 02 Apr 1746 in Co, Kilkenny, Ireland; died on 30 Jan 1827.
3. John Ponsonby was born on 24 Dec 1748; died on 9 Aug 1761.
4. George Ponsonby was born on 04 Mar 1755; died on 8 Jul 1817 in London, London, England.
5. Frances Ponsonby was born on 18 Feb 1757 in Kilkenny, Ireland; died on 25 Mar 1827 in Tunbridge Wells, Kent, England.
6. Richard Ponsonby was born on 17 Jul 1758.
7. Caroline Ponsonby was born on 28 Dec 1759; died in 1768.
8. Charlotte Ponsonby was born on 22 Dec 1761; died on 27 Aug 1781 in Paris, Paris, Ile-de-France, France.
9. Frederick Ponsonby was born on 18 Mar 1763 in Bessborough, Ballymackey, Tipperary, Barony of Upper Ormond, Munster (Nenagh) Ireland ; died on 28 Jul 1769.