| Jobsell | F. | 16 Edinborough Street, Mount Hawthorn | Studebaker | 7651 | Metro Private Car | 1925-26 |
| Jobson | B. S | Karragullen | Ford | 8294 | Metro Private Car | 1927-28 |
| Jobson | B. S. | Karragullen | Ford | 8294 | Metro Private Car | 1926-27 |
| Jodrell | F. | 16 Edinboro Street, Mount Hawthorn | Studebaker | 13753 | Metro Private Car | 1926-27 |
| Joe | I. | Broome | B.S.A. 20 H.P. for Trade or Hire | BM ● 22 | Broome Road Board | 1922-23 |
| Joel | B. | Ferguson | Ford Lorry | DA ● 24 | Dardanup Road Board | 1925-26 |
| Joel | B. | Ferguson | Dodge | DA ● 82 | Dardanup Road Board | 1927-28 |
| Joel | Dr C. S. | Bunbury | Hupmobile 16 H.P. | By 15 | Bunbury Municipality | 1917-18 |
| Joel | Dr C. S. | Bunbury | Hupmobile | By 15 | Bunbury Municipality | 1922-23 |
| Joel | Dr C. S. | Bunbury | Hupmobile | By 15 | Bunbury Municipality | 1924-25 |
| Joel | Dr C. S. | Bunbury | Hupmobile | BY 15 | Bunbury Municipality | 1925-26 |
| Joel | Dr S. C. | Bunbury | Austin | BY 15 | Bunbury Municipality | 1926-27 |
| Joel | Dr. | Bunbury | Hupmobile 17 H.P. | By 15 | Bunbury Municipality | 1915 |
| Joel | Dr. | Bunbury | Hupmobile 17 H.P. | By 15 | Bunbury Municipality | 1916 |
| Joel | Dr. C. S. | Bunbury | Hupmobile 16 H.P. | by 15 | Bunbury Municipality | 1919 |
| Joel | S. C. | Bunbury | Nash | BY 15 | Bunbury Municipality | 1927-28 |
| Joel | V. | Dardanup | Ford Lorry | DA ● 24 | Dardanup Road Board | 1924-25 |
| Joel B. & Clarke | - | Ferguson | Ford Lorry | DA ● 24 | Dardanup Road Board | 1927-28 |
| Joel Dr | C. S. | Bunbury | Hupmobile | BY 15 | Bunbury Municipality | 1923 - 1924 |
| Johannson Kerosene Motors Ltd | - | Weld Chambers | Ford | 2646 | Metro Private Car | 1923-24 |
| Johansan | A. | Tabba tabba Station | Ford | PH ● 2 | Port Hedland Road Board | 1922-23 |
| Johansen | A. F. | Merredin | Oldsmobile | MD ● 287 | Merredin Road Board | 1927-28 |
| Johansen | C. | Bencubbin | Ford Truck | MM ● 122 | Mount Marshall Road Board | 1927-28 |
| Johansen | C. H. | Walter Street, Claremont | Essex | 9154 | Metro Private Car | 1927-28 |
| Johansen | L. | Carnamah | G.M.C Truck | CA ● 89 | Carnamah Road Board | 1926-27 |
| Johansen | L. | Carnamah | G.M.C. Truck | CA ● 89 | Carnamah Road Board | 1927-28 |
| Johansen | L. | Carnamah | Chevrolet Truck | CA ● 197 | Carnamah Road Board | 1927-28 |
| Johanson | C. H. | Walter Street, North Perth | Essex | 9154 | Metro Private Car | 1926-27 |
| Johanson | G. | Moora | Overland | M ● 211 | Moora Road Board | 1927-28 |
| Johansson | A. | Tabba Tabba | Buick | PH ● 1 | Port Hedland Road Board | 1923-24 |
| Johansson | A. | Tabba Tabba Station | Ford | PH ● 2 | Port Hedland Road Board | 1923-24 |
| Johansson | M. | Tabba Tabba | Ford 20 H.P. | PH ● 2 | Port Hedland Road Board | 1917-18 |
| Johasson | W. G. | Nungarin | Buick | NA ● 128 | Nungarin Road Board | 1927-28 |
| Johhson | W. | 15 Murray Street | Overland 25 H.P. | P 1203 | Perth Municipality | 1919 |
| John | G. G. | Leake Street, Cottesloe | Stephens | 5248 | Metro Private Car | 1926-27 |
| John | G. G. | Leake Street, Peppermint Grove | Dodge 20 H.P. | PG 35 | Peppermint Grove Road Board | 1919 |
| John | G. G. | Leake Street, Cottesloe | Stephens | 5248 | Metro Private Car | 1924-25 |
| John | G. G. | Leake Street, Cottesloe | Stephens | 5248 | Metro Private Car | 1925-26 |
| John | G. G. | Marchagee | Chevrolet Truck | CA ● 229 | Carnamah Road Board | 1927-28 |
| John | Geo. | Federal Hotel, Fremantle | Ford | 1813 | Metro Private Car | 1923-24 |
| John | H. A. | Subiaco | Ford | 2492 | Metro Private Car | 1926-27 |
| John | H. A. | 93 Keightley Road, Subiaco | Ford | 2492 | Metro Private Car | 1927-28 |
| John | M. S. | Leake Street, Cottesloe | Stephens | 7036 | Metro Private Car | 1925-26 |
| John | M. S. | Leake Street, Cottesloe | Stephens | 7036 | Metro Private Car | 1926-27 |
| John | M. S. | Leake Street, Cottesloe | Stephens | 7036 | Metro Private Car | 1927-28 |
| John | W. | Broome | Dodge | BM ● 56 | Broome Road Board | 1925-26 |
| John | W. A. | Boddington | Ford | MR ● 15 | Marradong Road Board | 1927-28 |
| John | W. L. | Broome | Dodge | BM ● 3 | Broome Road Board | 1926-27 |
| John | W. L. | Broome | Dodge | BM ● 3 | Broome Road Board | 1927-28 |
| John & Perry | Perry | Wanneroo | Ford | WN ● 2 | Wanneroo Road Board | 1923-24 |
