| Sydney | G. | Bootmaker | Guildford | 1883 | Herald Almanack |
| Sydney | G. | Bootmaker | Guildford | 1884 | Herald Almanack |
| Sydney | G. | Bootmaker | Guildford | 1885 | Herald Almanack |
| Sydney | G. | Bootmaker | Guildford | 1886 | WA Almanack |
| Sydney Clothing Co. | Martin, W. T. | Manager | Wellington Street, Perth | 1897 | Witton's Directory |
| Sykes | G. F. | Contracting Plasterer | Troode Street, Perth | 1897 | Witton's Directory |
| Sykes | Wm. | Carpenter | Karridale | 1897 | Witton's Directory |
| Sykes & Co. | S. | Plumbers | Albany | 1889 | WA Almanack |
| Sykes Bros. | - | Plumbers and Gasfitters | Perth | 1887 | WA Almanack |
| Sykes Brothers | - | Plumbers and Gasfitters | Perth | 1886 | WA Almanack |
| Sykes S. & Co. | - | Plumbers | Albany | 1888 | WA Almanack |
| Sylvester | J. | Carpenter (Willimas River) | Albany Road | 1879 | WA Almanack |
| Sylvester | J. | Carpenter | Albany Road (Williams River) | 1880 | WA Almanack |
| Sylvester | J. | Carpenter | Albany Road (Williams River) | 1881 | WA Almanack |
| Sylvester | J. | Carpenter | Williams River | 1882 | Herald Almanack |
| Sylvester | J. | Carpenter | Albany Road (Williams River) | 1882 | WA Almanack |
| Sylvester | J. | Carpenter | Williams River | 1883 | Herald Almanack |
| Sylvester | J. | Carpenter | Williams River | 1884 | Herald Almanack |
| Sylvester | J. | Carpenter | Albany River (Williams River) | 1884 | WA Almanack |
| Sylvester | J. | Carpenter | Williams River | 1885 | Herald Almanack |
| Sylvester | J. | Carpenter | Albany Road (Williams River) | 1886 | WA Almanack |
| Sylvester | J. | Carpenter | Williams River | 1887 | WA Almanack |
| Sylvester | J. | Carpenter | Albany Road(Williams River) | 1888 | WA Almanack |
| Sylvester | J. | Carpenter | Albany Road (Williams River) | 1889 | WA Almanack |
| Sylvester | Wm. | | Moora | 1897 | Witton's Directory |
| Sylvestor | Mrs. | Ladies Nurse | Katanning | 1897 | Witton's Directory |
| Sylvia | C. | Miner | Parker's Range | 1897 | Witton's Directory |
| Symers | Captain | J. L. | Albany | 1880 | WA Almanack |
| Symers | G. | Frmr. and Grazier | Albany Road (Eticup) | 1880 | WA Almanack |
| Symers | G. | Farmer | Albany Road (Eticup) | 1881 | WA Almanack |
| Symers | G. | Farmer | Albany Road (Eticup) | 1882 | WA Almanack |
| Symers | G. | Farmer | Albany River (Eticup) | 1884 | WA Almanack |
| Symers | G. | Farmer | Albany Road (Eticup) | 1886 | WA Almanack |
| Symers | G. | Farmer | Meticup | 1887 | WA Almanack |
| Symers | G. | Farmer | Albany Road (Eticup) | 1888 | WA Almanack |
| Symers | G. | Farmer | Albany Road (Eticup) | 1889 | WA Almanack |
| Symers | J. L. | House Proprietor | Albany | 1877 | WA Almanack |
| Symers | P. | Station Manager | North-West (Robe River) | 1887 | WA Almanack |
| Symers | P. | Station Manager | North-West (Robe River) | 1888 | WA Almanack |
| Symers | P. | Station Manager | North-West (Robe River) | 1889 | WA Almanack |
| Symers | S. | Station Manager | Robe River & Cane River | 1885 | Herald Almanack |
| Symers | S. | Station Manager | North-West Coast (Robe River) | 1886 | WA Almanack |
| Symers | S. S. C. | Farmer | Albany | 1868 | WA Almanack |
| Symers | S. S. C. | Farmer | Albany | 1869 | WA Almanack |
| Symers | S. S. C. | Farmer | Albany | 1870 | WA Almanack |
| Symers | T. L. | Houseowner | Albany | 1864 | WA Almanack |
| Symers | T. L. | House Owner | Albany | 1865 | WA Almanack |
| Symers | T. L. | House Owner | Albany | 1866 | WA Almanack |
| Symers | T. L. | House Owner | Albany | 1867 | WA Almanack |
| Symers | T. L. | House Owner | Albany | 1868 | WA Almanack |
