| Solomon E. & Co. | - | Auctioneers | Fremantle | 1888 | WA Almanack |
| Somerville | H. | | Troode Street, Perth | 1897 | Witton's Directory |
| Somes | J. | Grocer | Fitzgerald Street, Perth | 1897 | Witton's Directory |
| Sommers | J. W. | Proprietor Victoria Hotel | Bayley Street, Coolgardie | 1897 | Witton's Directory |
| Sommers | J. W. | Victoria Hotel Proprietor | Hunt Street, Coolgardie | 1897 | Witton's Directory |
| Sommess | A. | Farmer | Mount Barker | 1897 | Witton's Directory |
| Sommess | W. | Farmer | Mount Barker | 1897 | Witton's Directory |
| Sommess | W. | Farmer | Mount Barker | 1897 | Witton's Directory |
| Sonnadere | D. E. W. | Watchmaker & Jeweller | Barrack Street, Perth | 1897 | Witton's Directory |
| Sonness | J. | Publican | Albany Road (Kojonup & Gordon) (Mount Barker) | 1874 | WA Almanack |
| Sornell | | | "Waverley Cottage" Hutt Street, Perth | 1897 | Witton's Directory |
| Sotillos | G. | Station Overseer | Victoria Plains | 1869 | WA Almanack |
| Sotillos | G. | Station Overseer | Victoria Plains | 1870 | WA Almanack |
| Sotillos | G. | Station Overseer | Victoria Plains | 1872 | WA Almanack |
| Sotillos | G. | Station Master | Victoria Plains | 1873 | Herald Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains | 1874 | Herald Almanack |
| Sotillos | G. | Station Overseer | Victoria Plains | 1874 | WA Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains | 1875 | Herald Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains | 1875 | WA Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains | 1876 | Herald Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains &c. | 1876 | WA Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains & Dandaragan | 1877 | Herald Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains | 1877 | WA Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains & Dandaragan | 1878 | Herald Almanack |
| Sotillos | G. | Stationmaster New Norcia | Victoria Plains & Dandaragan | 1879 | WA Almanack |
| Sotillos | G. | Stationmaster | Victoria Plains & Dandaragan | 1880 | WA Almanack |
| Sotiloss | G. | Staion Overseer | Victoria Plains | 1873 | WA Almanack |
| Sotter | Mrs. | - | Perth | 1880 | WA Almanack |
| Soulie | E. C. | | John Street, North Fremantle | 1897 | Witton's Directory |
| Souness | J. | Publican | Albany | 1877 | Herald Almanack |
| Souness | J. | Publican | Albany | 1878 | Herald Almanack |
| Souness | J. | Publican | Albany | 1879 | WA Almanack |
| Souness | M. | Farmer | Albany | 1877 | Herald Almanack |
| Souness | M. | Farmer | Albany | 1878 | Herald Almanack |
| Souness | M. | Farmer | Albany | 1879 | WA Almanack |
| Souness | S. | House Proprietor | Albany | 1877 | Herald Almanack |
| Souness | S. | Sheep Farmer | Albany | 1877 | Herald Almanack |
| Souness | S. | House Proprietor | Albany | 1878 | Herald Almanack |
| Souness | S. | Sheep Farmer | Albany | 1878 | Herald Almanack |
| Souness | S. | House Proprietor | Albany | 1879 | WA Almanack |
| Souness | S. | Sheep Farmer | Albany | 1879 | WA Almanack |
| Souness | W. | Farmer | Albany | 1874 | WA Almanack |
| Souness | W. | Farmer | Albany | 1875 | Herald Almanack |
| Souness | W. | Farmer | Albany | 1875 | WA Almanack |
| Souness | W. | Farmer | Albany | 1876 | Herald Almanack |
| Souness | W. | Farmer (Mount Barker) | Albany Road | 1879 | WA Almanack |
| Souness | W. | Farmer | Albany Road (Mount Barker) | 1880 | WA Almanack |
| Souness | W. | Farmer | Albany | 1880 | WA Almanack |
| Souness | W. jun. | Farmer | Albany | 1880 | WA Almanack |
| Sounness | J. | Publican (Mount Barker) | Albany | 1876 | WA Almanack |