Four or more generations of descendants of John Pomeroy, 4th Viscount Harberton (1758-1833) if they are properly linked:
1. John Pomeroy, 4th Viscount Harberton (1758-1833)
- 2. George Francis Colley (1797-1879)
- 3. Maria Esther Colley (-1899)
- 3. Elizabeth Colley (-1910)
- 3. Henry FitzGeorge Colley (1827-1886)
- 4. Gertrude Theodosia Colley (-1934)
- 4. Elizabeth Maria Colley (-1895)
- 4. Frances Maud Caroline Colley (-1949)
- 4. Laura Emily Colley (-1942)
- 4. Florence Isabella Colley (1864-1912)
- 4. George Pomeroy Arthur Colley (1866-1933)
- 4. William Wingfield Colley (1868-1947)
- 4. Gerald Henry Colley (1870-1923)
- 4. Constance Helena Colley (1871-1912)
- 4. Edward Colley (1875-1912)
- 3. John Thomas Colley (1828-1855)
- 3. George Pomeroy-Colley (1835-1881)