| Jennings | W. | Armourer M. R. V. | Perth | 1882 | WA Almanack |
| Jennings | W. | Armourer M.R.V. | Perth | 1884 | Herald Almanack |
| Jennings | W. | Armourer M.R.V. | Perth | 1884 | WA Almanack |
| Jennings | W. | Armourer M.R.V. | Perth | 1885 | Herald Almanack |
| Jensberg | S. | | Murray Street, Perth | 1897 | Witton's Directory |
| Jensberg | S. | | Saint George's Terrace, Perth | 1897 | Witton's Directory |
| Jensen | - | Pearler | North-West (Cossack) | 1887 | WA Almanack |
| Jensen | - | Pearler | North-West (Cossack) | 1888 | WA Almanack |
| Jensen | - | Pearler | North-West (Cossack) | 1889 | WA Almanack |
| Jenson | W. | | Phillimore Street, Fremantle | 1897 | Witton's Directory |
| Jephson | - | 4th Master High School | Perth | 1886 | WA Almanack |
| Jephson | M. | Foreman | Busselton (Lower Blackwood) | 1888 | WA Almanack |
| Jephson | M. | Foreman | Busselton, Etc. (Lower Blackwood) | 1889 | WA Almanack |
| Jerger | J. H. & M. | Watchmakers & Jewellers | Bayley Street, Coolgardie | 1897 | Witton's Directory |
| Jerger | W. H. | Jeweller | Toorak (suburb), Coolgardie | 1897 | Witton's Directory |
| Jerk | J. B. | Bailiff Local Court | Guildford | 1875 | Herald Almanack |
| Jermyn | J. | Shoemaker | Mines | 1873 | Herald Almanack |
| Jermyn | Jno. | Shoemaker | Mines | 1874 | Herald Almanack |
| Jermyn | Jno. | Shoemaker | Mines | 1875 | Herald Almanack |
| Jermyn | Jno. | Shoemaker | Mines | 1875 | WA Almanack |
| Jermyn | Jno. | Shoemaker | Mines | 1876 | Herald Almanack |
| Jervis | W. F. | Importer | Perth | 1880 | WA Almanack |
| Jervis | W. F. | Com Traveller | Fremantle | 1884 | WA Almanack |
| Jervis | W. F. C. | Importer | Perth | 1881 | WA Almanack |
| Jervis | W. F. C. | Importer | Perth | 1882 | WA Almanack |
| Jervis | W. G. | Clerk of the Court | York | 1897 | Witton's Directory |
| Jervois | W. F. | Comrl Traveller | Perth | 1884 | WA Almanack |
| Jervois | W. F. C. | Clerk | Perth | 1884 | Herald Almanack |
| Jervois | W. F. C. | Clerk | Perth | 1885 | Herald Almanack |
| Jervois | W.F C | Clerk | Perth | 1886 | WA Almanack |
| Jessop | B. | Farmer | Northam | 1873 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1874 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1874 | WA Almanack |
| Jessop | B. | Farmer | Northam | 1875 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1875 | WA Almanack |
| Jessop | B. | Farmer | Northam | 1876 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1876 | WA Almanack |
| Jessop | B. | Farmer | Northam | 1877 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1877 | WA Almanack |
| Jessop | B. | Farmer | Northam | 1878 | Herald Almanack |
| Jessop | B. | Postmaster | Northam | 1879 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1879 | WA Almanack |
| Jessop | B. | - | Northam | 1880 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1880 | WA Almanack |
| Jessop | B. | - | Northam | 1881 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1881 | WA Almanack |
| Jessop | B. | - | Northam | 1882 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1882 | WA Almanack |
| Jessop | B. | Farmer | Northam | 1883 | Herald Almanack |
| Jessop | B. | Farmer | Northam | 1884 | Herald Almanack |
