- 06 Oct 1729 – Birth – ; Old Ballyseedy Castle, Tralee, County Kerry, Ireland
- Aft. 1780 – Death –
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| PARENT (M) John Col 4th Blennerhassett Esq | |||
| Birth | 1690 | Old Ballyseedy Castle, Tralee, County Kerry, Ireland | |
| Death | 05 May 1775 | Oak Park House, Killeen, Tralee, County Kerry, Ireland | |
| Marriage | 1713 | to Jane Blennerhassett Darby 1690 Denny at Castle Lyons, County Cork, Ireland | |
| Father | ? | ||
| Mother | ? | ||
| PARENT (F) Jane Blennerhassett Darby 1690 Denny | |||
| Birth | 1690 | Tralee Castle, Annagh, County Kerry, Ireland | |
| Death | Dy | ||
| Marriage | 1713 | to John Col 4th Blennerhassett Esq at Castle Lyons, County Cork, Ireland | |
| Father | ? | ||
| Mother | ? | ||
| CHILDREN | |||
| M | William Blennerhasset | ||
| Birth | ABT 1745 | ,Kerry,Ireland | |
| Death | |||
| Marriage | 26 Oct 1776 | to Melian Morgell at Rathkeale,Limerick,Ireland | |
| M | Thomas Blennerhassett | ||
| Birth | |||
| Death | |||
| M | John 5th Blennerhassett | ||
| Birth | 15 June 1715 | Old Ballyseedy Castle, Tralee, County Kerry, Ireland | |
| Death | 14 May 1763 | Tralee, County Kerry, Ireland | |
| F | Agnes Blennerhassett | ||
| Birth | 02 May 1722 | Old Ballyseedy Castle, Tralee, County Kerry, Ireland | |
| Death | 1779 | Tralee Castle, Annagh, County Kerry, Ireland | |
| F | Letitia Blennerhassett | ||
| Birth | 28 Feb 1728 | Old Ballyseedy Castle, Tralee, County Kerry, Ireland | |
| Death | 1801 | Tralee, County Kerry, Ireland | |
| F | Mary Crosbie Blennerhassett | ||
| Birth | 06 Oct 1729 | Old Ballyseedy Castle, Tralee, County Kerry, Ireland | |
| Death | Aft. 1780 | ||
| Marriage | 1750 | to Lancelot Crosbie at Tubrid, Kerry, Ireland | |
| F | Arabella Ponsonby Blennerhassett | ||
| Birth | 21 Dec 1726 | Old Ballyseedy Castle, Tralee, County Kerry, Ireland | |
| Death | 21 Jan 1795 | Arabella House, Ballymacelligott, County Kerry, Ireland | |
| Marriage | 1764 | to Arthur Blenerhassett at Ireland | |
| F | Martha Blennerhassett | ||
| Birth | 1717 | , , , England | |
| Death | |||
| M | John Blennerhassett | ||
| Birth | 12 Oct 1726 | Castle Conway, Killorglin, Co Kerry, Ireland | |
| Death | 1733 | ||
| M | Arthur Blennerhassett | ||
| Birth | 19 Feb 1719 | Ballyshiddy Castle, Ballyseedy, Co. Kerry, Munster, Ireland | |
| Death | 03 Jun 1799 | Bath, Somerset, England | |
| PARENT (M) Lancelot Crosbie | |||
| Birth | 1720 | Ciarrai Kerry Ireland | |
| Death | Tubrid, County Kerry, Ireland | ||
| Marriage | 1750 | to Mary Crosbie Blennerhassett at Tubrid, Kerry, Ireland | |
| Father | ? | ||
| Mother | ? | ||
| PARENT (F) Mary Crosbie Blennerhassett | |||
| Birth | 06 Oct 1729 | Old Ballyseedy Castle, Tralee, County Kerry, Ireland | |
| Death | Aft. 1780 | ||
| Marriage | 1750 | to Lancelot Crosbie at Tubrid, Kerry, Ireland | |
| Father | John Col 4th Blennerhassett Esq | ||
| Mother | Jane Blennerhassett Darby 1690 Denny | ||
| CHILDREN | |||
| M | John Gustavus Crosbie Colonel, MP | ||
| Birth | abt 1750 | Dunloe Castle, Ardfert, Kerry, Ireland | |
| Death | 6 Jul 1797 | Tubrid House, Ardfert, Co Kerry, Ireland | |
| F | Catherine Arabella Crosbie | ||
| Birth | 1758 | Tubrid Kerry Ireland | |
| Death | 1783 | ||
| F | Jane Mary Crosbie | ||
| Birth | 1770 | Ireland | |
| Death | 19 Jan 1798 | 8 Queen St., London, England | |
1 Mary Crosbie Blennerhassett b: 06 Oct 1729 d: Aft. 1780
+ Lancelot Crosbie b: 1720
2 John Gustavus Crosbie Colonel, MP b: abt 1750 d: 6 Jul 1797
2 Catherine Arabella Crosbie b: 1758 d: 1783
2 Jane Mary Crosbie b: 1770 d: 19 Jan 1798
