| Name | 1790 | 1820 | 1830 | 1840 | 1850 | 1860 | 1870 | 1871 | 1875 | 1880 | 1885 | 1890 | 1895 | 1900 | 1905 | 1910 | 1915 | 1920 | 1925 | 1930 | 1935 | 1940 | 1945 | |
| 1 | Arthur Dockter (1922-) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | m | m | m | m | m |
| 2 | Mary Spear (1896-1965) | - | - | - | - | - | - | - | - | - | - | - | - | - | m | m | m | m | m | m | m | m | m | m |
| 3 | John M Dockter (1890-1976) | - | - | - | - | - | - | - | - | - | - | - | m | m | m | m | m | m | m | m | m | m | m | m |
| 4 | Jacob Dockter (1858-1928) | - | - | - | - | - | m | m | m | m | m | m | m | m | m | m | m | m | m | m | - | - | - | - |
| 5 | Katharina Reile (1857-1924) | - | - | - | - | - | m | m | m | m | m | m | m | m | m | m | m | m | m | - | - | - | - | - |
| Generation 1 | |
| [1.01 2] Arthur Dockter (1922-) | ND |
| Generation 2 | |
| [1.02 3] John M Dockter (1890-1976) | MN-ND |
| [2.01* ] Mary Spear (1896-1965) | CAN-ND |
| Generation 3 | |
| [1.03* ] Jacob Dockter (1858-1928) | MN-ND |
| [3.01* ] Katharina Reile (1857-1924) | MN-ND |