| Inverarity | R. M. | Kellerberrin | Oakland | KE ● 10 | Kellerberrin Road Board | 1926-27 |
| Inverarity | R. M. | Kellerberrin | Oakland | KE ● 10 | Kellerberrin Road Board | 1927-28 |
| Inveratiry | R. M. | Kellerberrin | Chevrolet | KE ● 10 | Kellerberrin Road Board | 1924-25 |
| Ion | Mrs M. O. | Doodlakine | Chevrolet | KE ● 189 | Kellerberrin Road Board | 1925-26 |
| Ion | Mrs M. O. | Doodlakine | Chevrolet | KE ● 189 | Kellerberrin Road Board | 1926-27 |
| Ion | Mrs M. O. | Doodlakine | Dodge | KE ● 189 | Kellerberrin Road Board | 1927-28 |
| Ireland | E. | Parker Street, Bassendean | Citroen | 6625 | Metro Private Car | 1924-25 |
| Ireland | E. | Parker Street, Bassendean | Citroen | 6625 | Metro Private Car | 1925-26 |
| Ireland | E. E. | Parker Street, Bassendean | Morris-Cowley | 11410 | Metro Private Car | 1926-27 |
| Ireland | E. E. | Parker Street, Bassendean | Morris-Cowley | 11410 | Metro Private Car | 1927-28 |
| Irgens | Enid | Wickepin | Chevrolet | WK ● 16 | Wickepin Road Board | 1927-28 |
| Irving | D. H. | 3 Leonards Avenue, West Leederville | Studebaker | 10489 | Metro Hire or Trade | 1926-27 |
| Irving | D. H. | 3 Street, Leonard's Avenue, West L'ville | Studebaker | 4691 | Metro Private Car | 1927-28 |
| Irving | H. E. | 169 Duke Street, East Fremantle | Oldsmobile | 10441 | Metro Hire or Trade | 1927-28 |
| Isaac | B. Rose | Jarring | Dodge | LG ● 1 | Lake Grace Road Board | 1923-24 |
| Isaac | W. | Broome Street | Studebaker 20 H.P. | Ce 1 | Municipality of Cottesloe | 1917-18 |
| Isaac | W. | Broome Street | Studebaker 20 H.P. | Ce 1 | Municipality of Cottesloe | 1919 |
| Isaacman | J. | 250 Lake Street | B.S.A. 3½ H.P. Motorcycle | P 138 | Perth Municipality | 1915 |
| Ive | E. W. | - | Studebaker 24 H.P. | GN 4 | Geraldton Municipality | 1919 |
| Jack | W. T. | 1286 Hay Street | Studebaker 20 H.P. | P 1250 | Perth Municipality | 1919 |
| Jackson | - | 56 Geddes Street, Victoria Park | Studebaker | 6369 | Metro Private Car | 1926-27 |
| Jackson | A. R. | Oakabella | Studebaker | NR ● 107 | Northampton Road Board | 1925-26 |
| Jackson | A. R. | Oakabella | Studebaker | NR ● 107 | Northampton Road Board | 1926-27 |
| Jackson | A. R. | Oakbella | Studebaker | NR ● 107 | Northampton Road Board | 1927-28 |
| Jackson | F. W. | Cookernup | Ford | H ● 165 | Harvey Road Board | 1926-27 |
| Jackson | H. S. | Brunswick Road | Studebaker 25 H.P. for Trade or Hire | A 18 | Albany Municipality | 1922-23 |
| Jackson | J. W. | Goonerup | Chevrolet | DK ● 16 | Drakesbrook Road Board | 1926-27 |
| Jackson | L. E. | Yealering | Ford Truck | WK ● 226 | Wickepin Road Board | 1927-28 |
| Jackson | Mrs | Cornwall Hotel, Hopkin Street, Boulder | Studebaker | B 33 | Boulder Municipality | 1922-23 |
| Jackson | Mrs | Cornwall Hotel, Hopkin Street, Boulder | Studebaker | B 33 | Boulder Municipality | 1923-24 |
| Jackson | Mrs C. | Boulder | Studebaker 25 H.P. | B 13 | Boulder Municipality | 1915 |
| Jackson | Mrs C. | Boulder | Studebaker 25 H.P. | B 33 | Boulder Municipality | 1916 |
| Jackson | Mrs C. | Boulder | Studebaker 25 H.P. | B 33 | Boulder Municipality | 1917-18 |
| Jackson | Mrs C. | Boulder | Studebaker 20 H.P. | B 33 | Boulder Municipality | 1919 |
| Jackson | Mrs C. A. | Cnr. Gloucester & Geddes streets, Victoria Park | Studebaker | 6369 | Metro Private Car | 1924-25 |
| Jackson | Mrs C. A. | Cnr. Gloucester & Geddes Street, Vic. Park | Studebaker | 6369 | Metro Private Car | 1925-26 |
| Jackson | T. W. | Cookernup | Ford | H ● 224 | Harvey Road Board | 1927-28 |
| Jackson | W. J. | Oakabella | Studebaker 30 H.P. | NR ● 30 | Northampton Road Board | 1922-23 |
| Jackson | W. J. | Oakabella | Studebaker 30 H.P. | NR ● 30 | Northampton Road Board | 1923-24 |
| Jackson | W. J. | Oakabella | Studebaker | NR ● 30 | Northampton Road Board | 1924-25 |
| Jacob | Edwin | 34 Lane Street, Boulder | Studebaker for Trade or Hire | B 3 | Boulder Municipality | 1922-23 |
| Jacobs | Rev. | Tammin | - | MKB 11 | Meckering Road Board | 1915 |
| Jacobson | - | 46 Leake Street, North Perth | Willys-Knight | 9917 | Metro Private Car | 1926-27 |
| Jaeschke | F. F. A. | Bunjil | Ford Truck | PM ● 69 | Perenjori-Morawa Road Board | 1927-28 |
| Jaeschke | P. E. H. | 164 Loftus Street, Leederville | Talbot | 117 | Metro Private Car | 1923-24 |
| Jage | Herbert | Wickepin | Dodge | WK ● 26 | Wickepin Road Board | 1925-26 |
| Jago | Herbert | Wickepin | Dodge | WK ● 26 | Wickepin Road Board | 1923-24 |
| Jago | Herbert | Wickepin | Dodge | WK ● 26 | Wickepin Road Board | 1924-25 |
| Jago | Herbert | Wickepin | Dodge | WK ● 26 | Wickepin Road Board | 1926-27 |
| Jago | Herbert | Wickepin | Dodge | WK ● 26 | Wickepin Road Board | 1927-28 |
