| Thomas | William | Mason | Albany | 1869 | WA Almanack |
| Thomas | William | Pearler | Murchison, Gascoyne &c. (Gascoyne, Sharks Bay, Etc.) | 1884 | WA Almanack |
| Thomas | William | Pearler | Murchison & Gascoyne (Gascoyne, Sharks Bay, Etc) | 1886 | WA Almanack |
| Thomasin | L. | Engineer | Golden Valley | 1897 | Witton's Directory |
| Thomlinson | H. | Dyer | Perth | 1889 | WA Almanack |
| Thomoson | A. C. | Architect | Murray & Serpentine | 1872 | WA Almanack |
| Thompsan | A. C. | Architect | Murray | 1873 | Herald Almanack |
| Thompsom | G. | Overseer | De Grey River | 1885 | Herald Almanack |
| Thompson | & Chubb | Storekprs. | Fremantle | 1880 | WA Almanack |
| Thompson | - | | Randell Street, Perth | 1897 | Witton's Directory |
| Thompson | A. | Farmer & Grazier | Gingin | 1870 | WA Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1873 | Herald Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1874 | Herald Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1875 | Herald Almanack |
| Thompson | A. | Frmr and Grazier | Gingin | 1875 | WA Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1876 | Herald Almanack |
| Thompson | A. | Frmr. and Grzr. | Gingin Bindoon &c. | 1876 | WA Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1877 | Herald Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1877 | WA Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1878 | Herald Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1879 | Herald Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1879 | WA Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1880 | Herald Almanack |
| Thompson | A. | Farmer | Gingin, Binoon, &c. | 1880 | WA Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1881 | Herald Almanack |
| Thompson | A. | Mariner | Fremantle | 1881 | WA Almanack |
| Thompson | A. | Farmer | Gingin, Bindoon &c. | 1881 | WA Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1882 | Herald Almanack |
| Thompson | A. | Mariner | Fremantle | 1882 | WA Almanack |
| Thompson | A. | Farmer | Gingin, Bindoon | 1882 | WA Almanack |
| Thompson | A. | Shipwright | North-West Coast (Cossack) | 1882 | WA Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1883 | Herald Almanack |
| Thompson | A. | Shipwright | Cossack | 1883 | Herald Almanack |
| Thompson | A. | Mariner | Fremantle | 1883 | WA Almanack |
| Thompson | A. | Railway Accountant | Perth | 1884 | Herald Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1884 | Herald Almanack |
| Thompson | A. | Shipwright | Cossack | 1884 | Herald Almanack |
| Thompson | A. | Mariner | Fremantle | 1884 | WA Almanack |
| Thompson | A. | Farmer | Gingin, Bindoon, Etc. (Bindoon) | 1884 | WA Almanack |
| Thompson | A. | Railway Accountant | Perth | 1885 | Herald Almanack |
| Thompson | A. | Farmer & Grazier | Gingin | 1885 | Herald Almanack |
| Thompson | A. | Pilot | Albany | 1885 | Herald Almanack |
| Thompson | A. | Shipwright | Cossack | 1885 | Herald Almanack |
| Thompson | A. | Railway Accountant | Perth | 1886 | WA Almanack |
| Thompson | A. | Compositor | Fremantle | 1886 | WA Almanack |
| Thompson | A. | Compositor | Fremantle | 1887 | WA Almanack |
| Thompson | A. | Farmer and Grazier | Gingin | 1887 | WA Almanack |
| Thompson | A. | Pilot | Albany | 1887 | WA Almanack |
| Thompson | A. | Shipwright | North-West (Cossack) | 1887 | WA Almanack |
| Thompson | A. | Compositor | Fremantle | 1888 | WA Almanack |
