| Birth |
14 Feb 1812 |
Bishopwearmouth, Durham, England |
| Died |
28 May 1892 |
| |
| Father |
Christopher Thornhill Thornhill, 1820 Settler, b. Abt 1773, Sutherland, Durham, England |
| Mother |
Dorothea Mounsey, 1820 Settler, b. 21 Jan 1785, Yorkshire, England |
| |
| Family 1 |
Letitia Margaret Robertson, b. 24 Mar 1817, Uitenhage, Eastern Cape, South Africa |
| Married |
15 Dec 1837 |
Grahamstown Church (St George's - Anglican), Grahamstown, Eastern Cape, South Africa |
| Children |
| + | 1. Caroline Elizabeth Thornhill, b. 12 Nov 1838 |
| + | 2. Letitia Margaret Thornhill, b. 1841 |
| | 3. Alexander Robertson Thornhill, b. 20 Nov 1841 |
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| |
| Family 2 |
Johanna Christina Taylor, b. 12 Apr 1821, Beaufort West, Western Cape, South Africa |
| Married |
13 Aug 1844 |
Cradock, Eastern Cape, South Africa |
| Children |
| + | 1. Frances Taylor Thornhill, b. 24 Dec 1845, Cradock, Eastern Cape, South Africa |
| | 2. Christopher Armstrong Thornhill, b. 12 Jul 1847, Cradock, Eastern Cape, South Africa |
| | 3. Phillip Camm Thornhill, b. 10 Jan 1849, Cradock, Eastern Cape, South Africa |
| | 4. Agnes Dorothy Elizabeth Thornhill, b. 21 Apr 1850, Cradock, Eastern Cape, South Africa |
| | 5. John David Thornhill, b. 10 Feb 1853, Cradock, Eastern Cape, South Africa |
| | 6. William Isaac Thornhill, b. 5 Aug 1854, Cradock, Eastern Cape, South Africa |
| + | 7. Alice Elizabeth Jane Thornhill, b. 5 Sep 1855, Cradock, Eastern Cape, South Africa |
| | 8. Samuel Thornhill, b. 19 Mar 1857, Cradock, Eastern Cape, South Africa |
| + | 9. Ernest Alphonso Thornhill, b. 9 Mar 1858, Cradock, Eastern Cape, South Africa |
| | 10. Louis Adolfis Septimus Thornhill, b. 1862, Cradock, Eastern Cape, South Africa |
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