| Livinia Jane Coakerbetween April 1855 and June 1855 | |
| Charles Coakerbetween October 1856 and December 1856 | |
| Mark Coakerbetween July 1858 and September 1858 | |
| Alfred Coaker6 April 1861 | |
| Edwin Coakerbetween October 1864 and December 1864 | |
| Ernest Blatchford Luke Coakerbetween July 1866 and September 1866 | |
| Herbert Jonas Coakerbetween January 1869 and March 1869 | |
| Frank William George Coaker2 July 1871 | |
| Wallace Parnell Coakerbetween July 1872 and September 1872 | |
| Sydney Brooks Coakerbetween April 1875 and June 1875 | |