| Slater | George. | Farmer & Grazier | Toodyay | 1868 | WA Almanack |
| Slater | H. | Farmer | Newcastle & Toodyay District | 1882 | WA Almanack |
| Slater | H. | Farmer | Newcastle & Toodyay District | 1884 | WA Almanack |
| Slater | H. | Farmer | Northam | 1888 | WA Almanack |
| Slater | H. | Farmer | Northam | 1889 | WA Almanack |
| Slater | H. A. | | Northam | 1897 | Witton's Directory |
| Slater | J. & W. | Farmer | Irwin & Dongara | 1873 | Herald Almanack |
| Slater | Thos. | School Teacher | Marmion Street, Beaconsfield | 1897 | Witton's Directory |
| Slatterly | P. | Farmer | Dardanup | 1897 | Witton's Directory |
| Slattery | B. | Constable | Roebourne | 1897 | Witton's Directory |
| Slattery | M. J. | | Northam | 1897 | Witton's Directory |
| Slattery | P. | Farmer | Bunbury | 1875 | Herald Almanack |
| Slattery | P. | Farmer | Bunbury | 1875 | WA Almanack |
| Slattery | P. | Farmer | Bunbury | 1876 | Herald Almanack |
| Slattery | P. | Farmer | Bunbury | 1876 | WA Almanack |
| Slattery | P. | Farmer | Dardanup & Ferguson | 1877 | Herald Almanack |
| Slattery | P. | Farmer | Dardanup & Ferguson | 1878 | Herald Almanack |
| Slattery | P. | Farmer | Dardanup | 1879 | Herald Almanack |
| Slattery | P. | Farmer | Dardanup | 1880 | Herald Almanack |
| Slattery | P. | Farmer | Dardanup | 1881 | Herald Almanack |
| Slattery | P. | Farmer | Dardanup | 1882 | Herald Almanack |
| Slattery | P. | Farmer | Dardanup | 1883 | Herald Almanack |
| Slattery | P. | Farmer | Dardanup | 1884 | Herald Almanack |
| Slattery | Pat | Farmer | Upper Ferguson | 1885 | Herald Almanack |
| Slattery | Patrick | Farmer | Bunbury (Dardanup & Upper Ferguson) | 1877 | WA Almanack |
| Slattery | Patrick | Farmer | Wellington District (Dardanup & Upper Ferguson) | 1879 | WA Almanack |
| Slattery | Patrick | Farmer | Wellington (Dardanup & Upper Ferguson) | 1880 | WA Almanack |
| Slattery | Patrick | Farmer | Wellington District (Dardanup & Upper Ferguson) | 1881 | WA Almanack |
| Slattery | Patrick | Farmer | Wellington District (Dardanup & Upper Ferguson) | 1882 | WA Almanack |
| Slattery | Patrick | Farmer | Wellington District (Dardanup & Upper Ferguson) | 1884 | WA Almanack |
| Slattery | Patrick | Farmer | Wellington District (Dardanup & Upper Ferguson) | 1886 | WA Almanack |
| Slattery | Patrick | Farmer | Dardanup & Upper Ferguson | 1887 | WA Almanack |
| Slattery | Patrick | Farmer | Bunbury(Dardanup & Upper Ferguson) | 1888 | WA Almanack |
| Slattery | Patrick | Farmer | Bunbury, Etc. (Dardanup & Upper Ferguson) | 1889 | WA Almanack |
| Slaven | J. | Farmer | Greenough | 1888 | WA Almanack |
| Slaven | J. | Farmer | Greenough | 1889 | WA Almanack |
| Slavin | J. | Farmer | Victoria District (Greenough) | 1876 | WA Almanack |
| Slavin | J. | Farmer | Victoria District (Greenough) | 1880 | WA Almanack |
| Slavin | James | Farmer | Greenough | 1897 | Witton's Directory |
| Slavin | Wm. | Farmer | Greenough | 1897 | Witton's Directory |
| Slawson | T. | Tailor | Guildford | 1864 | WA Almanack |
| Slechynden | J. W. | Auctioneer & Carrying Agent | Bridgetown | 1897 | Witton's Directory |
| Slechynden | John | | Bridgetown | 1897 | Witton's Directory |
| Sleddon | T. | Merchant | Fremantle | 1868 | WA Almanack |
| Sleddon | T. | Merchant | Fremantle | 1869 | WA Almanack |
| Slee | C. E. | Produce Merchant | Essex Street, Fremantle | 1897 | Witton's Directory |
| Slee | C. E. | | Essex Street, Fremantle | 1897 | Witton's Directory |
| Sleight | J. | | Quindalup | 1897 | Witton's Directory |
| Sletchy | W. | Miner | Nannine | 1897 | Witton's Directory |
| Sley | R. | Pensioner | York | 1874 | WA Almanack |
