Helen Houston
- Yes, date unknown
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| Alexander (4th Lord Blantyre) Stewart | |
| D: | Bef 1689 |
| Margaret Shaw-Stewart | |
| B: | Abt 1802 |
| D: | Yes, date unknown |
| Sir Michael (5th Bt of Blackhall) Shaw-Stewart | |
| B: | 10 Feb 1766 |
| D: | 25 Aug 1825 |
| Catherine Maxwell | |
| B: | Bef 1787 |
| M: | 1787 |
| D: | Yes, date unknown |
| Houston Stewart-Nicholson | |
| D: | 1785 |
| Sir John (4th Bt of Blackhall) Shaw-Stewart | |
| B: | Abt 1740 |
| D: | 1812 |
| Helen Houston | |
| D: | 19 Jul 1746 |
| Sir Michael (3rd Bt of Blackhall) Stewart | |
| M: | Jun 1738 |
| D: | 20 Oct 1796 |
| Sir John (4th Bt of Houstoun) Houston | |
| D: | 27 Jul 1751 |
| Dsp | |
| Margaret Shaw | |
| D: | Yes, date unknown |
| Sir John (3rd Bt of Houstoun) Houstoun | |
| D: | 11 Feb 1722 |
| Sir John (3rd Bt of Greenock) Shaw | |
| D: | Yes, date unknown |
| Sir John (2nd Bt of Greenock) Shaw | |
| D: | 1702 |
| Eleanor Nicolson | |
| D: | Yes, date unknown |
| Sir John (1st Bt of Greenock) Shaw | |
| D: | 16 Apr 1693 |
|
| Helen Houston | |
| D: | Yes, date unknown |
| John (of Greenock) Shaw | |
| D: | Yes, date unknown |