| Coverley | Wm. | Farmer | Blackwood, Warren & Bridgetown | 1878 | Herald Almanack |
| Coverley | Wm. | Carter | Bunbury | 1897 | Witton's Directory |
| Coverlid | E. | | Attfield Street, Beaconsfield | 1897 | Witton's Directory |
| Coverly | W. | Farmer | Wellington District (Blackwood including Bridgetown & Warren) (Blackwood) | 1884 | WA Almanack |
| Coverly | W. | Farmer (Blackwood) | Wellington District (Blackwood including Bridgetown & Warren) | 1886 | WA Almanack |
| Covert | J. | Builder | Albany | 1880 | WA Almanack |
| Covert | James | Contractor | Albany | 1864 | WA Almanack |
| Covert | James | Contractor | Albany | 1865 | WA Almanack |
| Covert | James | Contractor | Albany | 1866 | WA Almanack |
| Covert | James | Constractor | Albany | 1867 | WA Almanack |
| Covert | James | Contractor | Albany | 1868 | WA Almanack |
| Covert | James | Contractor | Albany | 1869 | WA Almanack |
| Covert | James | Contractor | Albany | 1870 | WA Almanack |
| Covert | Jas. | Carpenter | Albany | 1876 | WA Almanack |
| Covert | Jas. | Carpenter | Albany | 1877 | WA Almanack |
| Cowan | Alfred | | Cantonment Road, Fremantle | 1897 | Witton's Directory |
| Cowan | E. S. | | Hampton Road, Fremantle | 1897 | Witton's Directory |
| Cowan | G. | Labourer | Busselton (Quindalup & Dunsborough) | 1888 | WA Almanack |
| Cowan | G. | Labourer | Busselton, Etc. (Quindalup & Dunsbro.) | 1889 | WA Almanack |
| Cowan | Henry | Clerk L. Court | York | 1876 | WA Almanack |
| Cowan | J. | Magistrates Clerk | York | 1867 | WA Almanack |
| Cowan | J. | Magistrates Clerk | York | 1868 | WA Almanack |
| Cowan | J. | Clerk of Court &c. | York | 1869 | WA Almanack |
| Cowan | J. | Clerk of Court &c. | York | 1870 | WA Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1872 | WA Almanack |
| Cowan | J. | Clerk of Court &c. | York | 1872 | WA Almanack |
| Cowan | J. | Clerk, Police Magistrate | King Street, Perth | 1873 | Herald Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1873 | WA Almanack |
| Cowan | J. | Clerk, Police Magistrate | Perth | 1874 | Herald Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1874 | WA Almanack |
| Cowan | J. | Clerk Plc. Magistrate | Perth | 1875 | Herald Almanack |
| Cowan | J. | Clerk Plc. Magistrate | Perth | 1875 | WA Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1876 | Herald Almanack |
| Cowan | J. | Clerk Plc. Magistrate | Perth | 1876 | WA Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1877 | Herald Almanack |
| Cowan | J. | Clerk Petty Sessions | Perth | 1877 | WA Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1878 | Herald Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1879 | Herald Almanack |
| Cowan | J. | Registrar Supreme Court | Perth | 1879 | WA Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1880 | Herald Almanack |
| Cowan | J. | Registrar Supreme Ct. | Perth | 1880 | WA Almanack |
| Cowan | J. | Clerk Police Magistrate | Perth | 1881 | Herald Almanack |
| Cowan | J. | Registrar Supreme Ct. | Perth | 1881 | WA Almanack |
| Cowan | J. | Master Supreme Court | Perth | 1882 | Herald Almanack |
| Cowan | J. | Resident Magistrate | York | 1882 | Herald Almanack |
| Cowan | J. | Registrar Supreme Ct. | Perth | 1882 | WA Almanack |
| Cowan | J. | Master Supreme Court | Perth | 1883 | Herald Almanack |
| Cowan | J. | Resident Magistrate | York | 1883 | Herald Almanack |
| Cowan | J. | Master Supreme Court | Perth | 1884 | Herald Almanack |
| Cowan | J. | Resident Magistrate | York | 1884 | Herald Almanack |