Four or more generations of descendants of Margaret Weddell (1803-1878) if they are properly linked:
1. Margaret Weddell (1803-1878)
- 2. Janet Weddell Turnbull (1830-1832)
- 2. Robert Turnbull (1832-1877)
- 2. Agnes Fairbairn Turnbull (1834-1888)
- 3. Maggie Weddell Turnbull White (1860-1930)
- 3. Josephine Susan Sadie White (1862)
- 2. James Weddell Turnbull (1838-1862)
- 2. Margaret Weddell Turnbull (1838-1873)
- 2. Edward Weddell Turnbull (1847-1897)
- 3. Edward Turnbull (1881-1834)
- 3. Robert Cooper Turnbull (1884-1972)
- 4. Katharine Edith Turnbull (1913-1996)
- 3. Walter James Turnbull (1885-1885)
- 3. Kenneth Leslie Turnbull (1892-1975)
- 4. Douglas James Weddell Turnbull (1925-)
- 4. Kenneth Malcolm Edward Turnbull (1926-)
- 3. Alexander Douglas Turnbull (1892-1972)