| Clapp | Robert | Miner | Toorak (suburb), Coolgardie | 1897 | Witton's Directory |
| Clarage | David | Farmer | Victoria Plains | 1877 | WA Almanack |
| Clarage | David | Farmer | Victoria Plains & Dandaragan | 1879 | WA Almanack |
| Clarage | David. | Farmer | Victoria Plains & Dandaragan | 1877 | Herald Almanack |
| Clarckson | E. W. | Farmer | Victoria District (Dongara & Irwin) | 1880 | WA Almanack |
| Clarendon Hotel | | | Fitzgerald Street, Perth | 1897 | Witton's Directory |
| Clarendon Hotel | Molloy, J. | Proprietor | John Street, Perth | 1897 | Witton's Directory |
| Clarey | J. | Grocer | Fitzgerald Street, Perth | 1897 | Witton's Directory |
| Clarey | J. K. | | Cowle Street, Perth | 1897 | Witton's Directory |
| Clarey | Jas. | Farmer | Dardanup | 1885 | Herald Almanack |
| Clariage | David | Farmer | Victoria Plains & Dandaragan | 1880 | WA Almanack |
| Clarige | E. | Telegraphist | Eucla Telegraph Line (Israelite Bay) | 1882 | WA Almanack |
| Clark | & Son | Grocers | Packenham Street, Fremantle | 1897 | Witton's Directory |
| Clark | - | Grazier (Smith & Clark) | Beverley | 1880 | Herald Almanack |
| Clark | A. | Blacksmith & Wheelwright | Ford Street, Coolgardie | 1897 | Witton's Directory |
| Clark | A. | A. | Moora | 1897 | Witton's Directory |
| Clark | A. S. | Sheep Farmer | Beverley | 1873 | WA Almanack |
| Clark | A. S. | Sheepfarmer | Beverley | 1874 | WA Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1875 | Herald Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1875 | WA Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1876 | Herald Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1877 | Herald Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1877 | WA Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1878 | Herald Almanack |
| Clark | A. S. | Farmer and Grazier | Beverley | 1879 | WA Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1880 | WA Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1881 | WA Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1882 | WA Almanack |
| Clark | A. S. | Farmer & Grazier | Beverley | 1884 | WA Almanack |
| Clark | A. S. | Farmer | Beverley (Wootabilling) | 1885 | Herald Almanack |
| Clark | A. S. | Farmer | Beverley | 1888 | WA Almanack |
| Clark | A. S. | Farmer | Beverley | 1889 | WA Almanack |
| Clark | A. S. | Cowering | Pingelly | 1897 | Witton's Directory |
| Clark | A.S. | Farmer and Grazier | Beverley | 1876 | WA Almanack |
| Clark | C. | | Bunbury | 1897 | Witton's Directory |
| Clark | E. | Mariner | Fremantle | 1879 | Herald Almanack |
| Clark | E. | Storekeeper | Wellington District (Bunbury, Etc) | 1880 | WA Almanack |
| Clark | E. | Mariner | Fremantle | 1881 | Herald Almanack |
| Clark | E. | Mariner | Fremantle | 1882 | Herald Almanack |
| Clark | E. | Storekeeper | Wellington District (Bunbury, Etc.) | 1882 | WA Almanack |
| Clark | E. | Mariner | Fremantle | 1883 | Herald Almanack |
| Clark | E. | Mariner | Fremantle | 1884 | Herald Almanack |
| Clark | E. | Storekeeper | Wellington District (Bunbury, Etc.) | 1884 | WA Almanack |
| Clark | E. | Mariner | Fremantle | 1885 | Herald Almanack |
| Clark | E. | Storekeeper | Wellington District | 1886 | WA Almanack |
| Clark | E. | Storekeeper | Bunbury | 1887 | WA Almanack |
| Clark | E. | Storekeeper | Bunbury | 1888 | WA Almanack |
| Clark | E. | Storekeeper | Bunbury, Etc. | 1889 | WA Almanack |
| Clark | E. D. | | 1 Westralian Chambers, Hannan Street, Kalgoorlie | 1897 | Witton's Directory |
| Clark | E. M. | Storekeeper | Bunbury | 1897 | Witton's Directory |
