Four or more generations of descendants of Thomas Allen (1755-1842) if they are properly linked:
1. Thomas Allen (1755-1842)
- 2. Elizabeth Allen (1779-1863)
- 2. Thomas Taber Allen (1781-1817)
- 2. Lewis Allen (1783-1844)
- 3. Lewis Allen (1806-1892)
- 3. Mary Allen (1808-1848)
- 3. Frances Elizabeth Allen (1811-1887)
- 3. William Mercer Allen (1812-)
- 3. Harriett Allen (1813-1849)
- 3. Laraine Allen (1817-)
- 3. Frederic Allen (1820-1872)
- 3. Thomas Humphrey Cushing Allen (1822-1900)
- 4. William Mercer Allen (1853-1927)
- 5. Anna Louise Allen (1880-1964) ... (more)
- 5. Florence Ferne Allen (1877-) ... (more)
- 5. Stanley Woodruff Allen (1887-) ... (more)
- 5. William Thompson Allen (1891-) ... (more)
- 4. Thomas Woodruff Allen (1855-)
- 4. Jonathan Harris Allen (1859-)
- 4. Charlotte Rowe Allen (1887-)
- 4. Frederick Lewis Allen (1891-1955)
- 4. William Mercer Allen (1853-1927)
- 3. Jane Allen (1824-1890)
- 3. Eleanor Caroline Allen (1828-)
- 3. Ann Maria Allen (1831-1832)
- 2. William Allen (1785-1833)
- 2. Frances Allen (1787-1877)
- 2. Samuel Allen (1789-)
- 2. Nathaniel Allen (1791-1822)
- 2. George Allen (1793-)
- 2. Amelia Allen (1795-)
- 2. John Allen (1797-1824)
- 2. Henry Nelson Allen (1799-1845)
- 2. Pardon Taber Allen (1801-)