Four or more generations of descendants of Samuel Cowan (1779-1828) if they are properly linked:
1. Samuel Cowan (1779-1828)
- 2. Christopher Columbus Cowan (1811-1879)
- 2. George Washington Cowan (1813-1875)
- 2. Martha Clarinda (or Melinda) Houston Cowan (1815-1863)
- 2. Samuel Franklin Cowan (1817-1883)
- 2. Eliza Jane Cowan (1819-1890)
- 2. Mary Ann Cowan (1821-1842)
- 2. James Houston Cowan (1823-1897)
- 2. Lucinda Gallaher Cowan (1826-1903)