Four or more generations of descendants of George Lionel Dawson-Damer (1788-1856) if they are properly linked:
1. George Lionel Dawson-Damer (1788-1856)
- 2. Georgiana Augusta Charlotte Caroline Dawson-Damer (1826-1866)
- 2. Alice Henrietta Dawson-Damer (c1828-)
- 2. Lionel Seymour William Dawson-Damer, 4th Earl of Portarlington (1832-1892)
- 3. Lionel George Henry Seymour Dawson-Damer, 5th Earl of Portarlington (1858-1900)
- 4. Lionel George Henry Seymour Dawson-Damer, 6th Earl of Portarlington (1883-1959)
- 4. Aline Mary Seymour Dawson-Damer (1884-1953)
- 4. Christian Norah Dawson-Damer (1890-1959)
- 5. Rosemary Luisa Bowes-Lyon (1915-1989) ... (more)
- 5. Nigel Damer Martin (1920-1990) ... (more)
- 5. David William Martin (1930) ... (more)
- 4. George Seymour Dawson-Damer (1892-1917)
- 4. Moyra Marjorie Dawson-Damer (1897-1962)
- 3. Mary Frances Seymour Dawson-Damer (1860-1895)
- 3. Montagu Francis Beauchamp Seymour Dawson-Damer (1864-1898)
- 3. Lionel George Henry Seymour Dawson-Damer, 5th Earl of Portarlington (1858-1900)
- 2. Constance Wilhelmina Frances Dawson-Damer (1836-1925)
- 2. Evelyn Mary Stuart Dawson-Damer (1835-1899)
- 2. Cecilia Blanche Horatia Seymour Dawson-Damer (c1839-1922)