Four or more generations of descendants of Mary Ann Harriet Abbott (1827-1911) if they are properly linked:
1. Mary Ann Harriet Abbott (1827-1911)
- 2. Henrietta Selina Gresley (1851-1932)
- 3. Lola Charlotte Henrietta Bacon (1877-1908)
- 3. Gladys Luz Bacon (1879-1932)
- 4. George Harley Hay, 14th Earl of Kinnoull (1902-1938)
- 3. Ianthe Bacon (1881-)
- 2. Louisa Florence Gresley (1852-)
- 2. Nigel Gresley (1853-)
- 2. Laura Gresley (1854-)
- 2. Herbert Gresley (1859-1859)
- 2. Madeline Gresley (1859-1955)
- 2. Augusta Elizabeth Gresley (1861-1888)
- 2. Josephine Lempriere Gresley (1864-1865)
- 2. Alicia Frederica Gresley (1866-1946)
- 3. Frederica Dutton Flemyng Gyll (1895-c1959)
- 3. Myra Lilias Flemyng Gyll (1898-c1972)
- 2. Ethel Beatrice Lempriere Gresley (1871-1927)
- 2. Isobel Clare Millicent Gresley (1872-1876)