Four or more generations of descendants of William Cowan (1750-1809) if they are properly linked:
1. William Cowan (1750-1809)
- 2. Eleanor Cowan (1774-1831)
- 3. John Finley Gillespy (c1795-)
- 3. William Cowan Gillespy, M.D. (1797-1860)
- 3. James Houston Gillespy (1799-1881)
- 3. Jane Walker Gillespy (1800-1882)
- 4. David Walker Carson (1830-1911)
- 5. Eleanor Jane Carson (1871-1947) ... (more)
- 4. James Gillespie CARSON (1833-1921)
- 4. Ellen Jane E B CARSON (1831-1858)
- 4. David Walker Carson (1830-1911)
- 3. Campbell Gillespy (1802-1886)
- 2. John Alexander Cowan (1775-1821)
- 2. Samuel Cowan (1779-1828)
- 3. Christopher Columbus Cowan (1811-1879)
- 3. George Washington Cowan (1813-1875)
- 3. Martha Clarinda (or Melinda) Houston Cowan (1815-1863)
- 3. Samuel Franklin Cowan (1817-1883)
- 3. Eliza Jane Cowan (1819-1890)
- 3. Mary Ann Cowan (1821-1842)
- 3. James Houston Cowan (1823-1897)
- 3. Lucinda Gallaher Cowan (1826-1903)
- 2. Andrew Cowan (1782-1872)
- 2. Robert Cowan (1784-1869)
- 2. Polly Cowan (c1787)
- 2. Ann Cowan (c1790-bef1850)
- 2. William Cowan (c1796-)
- 2. James Walker Cowan (1798-1870)
- 2. David Cowan (1799-)