| Throssell Forward & Bresnahan | - | Sheep Farmers | Onslow, Ashburton | 1889 | WA Almanack |
| Throssell Foward & Bresnahan | - | Sheepfarmers | Onslow (Ashburton) | 1888 | WA Almanack |
| Throssell Son & Stewart | - | Storekeepers | Northam | 1888 | WA Almanack |
| Throssell, Forward & Bresnahan | - | Sheep Farmers | Onslow (Ashburton) | 1887 | WA Almanack |
| Throssell, Son & Stewart | | Merchants & Importors | Northam | 1897 | Witton's Directory |
| Thrower | F. | Miner | Garden Gully, Nannine | 1897 | Witton's Directory |
| Thrush | Wm. | | Karridale | 1897 | Witton's Directory |
| Thulemann | H. | Baker | York | 1897 | Witton's Directory |
| Thurkle | A. | Farmer | Busselton (New Town) | 1888 | WA Almanack |
| Thurkle | A. | Farmer | Busselton, Etc. (New Town) | 1889 | WA Almanack |
| Thurkle | G. | Farmer | Vasse & Busselton | 1874 | WA Almanack |
| Thurkle | G. W. | Farmer | Lower Blackwood | 1885 | Herald Almanack |
| Thurkle | G. W. | Engineer | Busselton(Augusta) | 1888 | WA Almanack |
| Thurkle | G. W. | Labourer | Busselton, Etc. (Augusta, Etc., Karridale, Boranup & Hamlin) | 1889 | WA Almanack |
| Thurkle | Geo | Teamster | Booranup | 1897 | Witton's Directory |
| Thurkle | J. | Farmer | Newtown | 1879 | Herald Almanack |
| Thurkle | J. | Farmer | Newtown | 1880 | Herald Almanack |
| Thurkle | J. | Farmer | Newtown | 1881 | Herald Almanack |
| Thurkle | J. | Farmer | Vasse District | 1882 | Herald Almanack |
| Thurkle | J. | Farmer | Newton | 1884 | Herald Almanack |
| Thurkle | T. | Farmer | Perth | 1873 | WA Almanack |
| Thurkle | T. | Farmer | Vasse & Busselton | 1874 | WA Almanack |
| Thurkle | T. | Farmer | Busselton, Sussex & Nelson | 1875 | Herald Almanack |
| Thurkle | T. | Farmer | Busselton Sussex & Nelson | 1875 | WA Almanack |
| Thurkle | T. | Farmer | Busselton | 1876 | Herald Almanack |
| Thurkle | T. | Farmer | Busselton | 1876 | WA Almanack |
| Thurkle | T. | Farmer | Blackwood | 1877 | Herald Almanack |
| Thurkle | T. | Farmer | Busselton, Sussex & Nelson | 1877 | WA Almanack |
| Thurkle | T. | Farmer | Busselton, Sussex, Nelson | 1878 | Herald Almanack |
| Thurkle | T. | Farmer | Vasse | 1879 | WA Almanack |
| Thurkle | T. | Chairman R. Board | Busselton, Blackwood &c. (Newtown) | 1882 | WA Almanack |
| Thurkle | T. | Chairman R. Board | Busselton, Blackwood &c. (Newton) | 1884 | WA Almanack |
| Thurkle | T. | Farmer | Sussex (Busselton) | 1886 | WA Almanack |
| Thurkle | T. A. | Farmer & Agent National Mutual Life Insurance Society | New Town & near New Town | 1885 | Herald Almanack |
| Thurkle | T. A. | Farmer Agt. N. M. L. Ass Agent Inquirer and Daily News | Busselton (New Town) | 1888 | WA Almanack |
| Thurkle | T. A. | Farmer, Agt. N. M. L. Ass. Agent Inquirer and Daily News | Busselton, Etc. (New Town) | 1889 | WA Almanack |
| Thurkle | Thomas | Farmer | Busselton | 1873 | Herald Almanack |
| Thurkle | Thomas | Farmer | Busselton, Sussex & Nelson | 1874 | Herald Almanack |
| Thurkle | Thomas. | Farmer | Busselton, Blackwood &c. | 1881 | WA Almanack |
| Thurkle | Thos A. | Farmer | Newton | 1897 | Witton's Directory |
| Thurkle | Thos. | Farmer | Busselton, Blackwood, &c. | 1880 | WA Almanack |
| Thurkle | Thos. A. | Farmer | Busselton, Etc. | 1887 | WA Almanack |
| Thurston | A. | Cue Hotel | Cue | 1897 | Witton's Directory |
| Thurston | A. E. | | Lord Street, Fremantle | 1897 | Witton's Directory |
| Thurtle | J. | Farmer | Newton | 1883 | Herald Almanack |
| Thurtle | T. | Farmer | Busselton & Vasse | 1872 | WA Almanack |
| Thurton | S. | Master Mariner | Fremantle | 1875 | Herald Almanack |
| Thurton | S. | Master Mariner | Fremantle | 1875 | WA Almanack |
| Thwaites | J. | General Dealer | Perth | 1868 | WA Almanack |
| Thwaites | J. | Brewer | Perth | 1872 | WA Almanack |
