Four or more generations of descendants of George Blackman (1809-1875) if they are properly linked:
1. George Blackman (1809-1875)
- 2. George Harley Blackman (1838-1916)
- 3. Sarah A Blackman (1863-1898)
- 3. John E Blackman (c1865-1865)
- 3. Susannah Elizabeth Blackman (1867-c1954)
- 3. Ellen Mary Gertrude Blackman (c1869-c1948)
- 3. William H Blackman (1872-1901)
- 3. Jane Ada E Blackman (1875-1948)
- 3. Alice Edith May Blackman (1878-1957)
- 3. Ethel Ruby Idonea Blackman (1884-1952)
- 4. Sarah Frances Bagnall (1922-)
- 4. Harold Maxwell Bagnall (1926-)
- 2. Charles Samuel Blackman (1841-1915)
- 3. Charles N Blackman (1872-1873)
- 3. Blanche Catherine Blackman (1873-1898)
- 3. Alethea Blackman (1875-1896)
- 3. Meredith George Blackman (1876-1957)
- 3. Everard Alexander Blackman (1878-)
- 3. John Charles N Blackman (1881-1885)
- 2. William Blackman (1844-1922)
- 3. Mary Helena Blackman (1870-1871)
- 3. Herbert William Blackman (1871-1945)
- 3. Maude May Blackman (1874-1941)
- 4. Una Grace May Brown (1904-1990)
- 4. Ina Maud Mary Brown (c1906-1961)
- 4. Esme Muriel Brown (1908-1989)
- 4. Hyla Jean Brown (1908-)
- 4. Maxwell William Seymour Brown (1911-2000)
- 3. Ernest Alfred Blackman (1876-1924)
- 3. Sydney Horace Blackman (1880-1928)
- 2. Sarah Elizabeth Blackman (1847-1895)
- 2. Susannah Blackman (1849-1929)
- 2. Emily Jane Blackman (1852-1917)
- 2. Adelaide Mary Blackman (1856-1906)
- 3. George Alexander Lawson (1877-1892)
- 3. Georgina Estelle Lawson (1879-1969)
- 3. Royden Thomas Lawson (1882-)
- 3. Pauline Adelaide Grace Lawson (1884-1957)
- 3. Clara A Lawson (1886-1894)
- 3. Helena Heather Lawson (1895-1964)
- 2. James Blackman (1859-1933)
- 2. Martha Jessie Blackman (1862-1931)