Four or more generations of descendants of George Harley Blackman (1838-1916) if they are properly linked:
1. George Harley Blackman (1838-1916)
- 2. Sarah A Blackman (1863-1898)
- 2. John E Blackman (c1865-1865)
- 2. Susannah Elizabeth Blackman (1867-c1954)
- 2. Ellen Mary Gertrude Blackman (c1869-c1948)
- 2. William H Blackman (1872-1901)
- 2. Jane Ada E Blackman (1875-1948)
- 2. Alice Edith May Blackman (1878-1957)
- 2. Ethel Ruby Idonea Blackman (1884-1952)
- 3. Sarah Frances Bagnall (1922-)
- 3. Harold Maxwell Bagnall (1926-)