| Warren | A. | Darlot | Ford | LA ● 14 | Lawlers Road Board | 1925-26 |
| Warren | A. | Darlot | Ford | LA ● 14 | Lawlers Road Board | 1926-27 |
| Warren | A. | Darlot | Dodge | LA ● 30 | Lawlers Road Board | 1926-27 |
| Warren | A. | Darlot | Ford Truck | LA ● 14 | Lawlers Road Board | 1927-28 |
| Warren | A. | Darlot | Dodge | LA ● 30 | Lawlers Road Board | 1927-28 |
| Warren | A. A. | Darlot | Ford | LA ● 14 | Lawlers Road Board | 1923-24 |
| Warren | A. C. | Mullewa | Chevrolet | MW ● 1 | Mullewa Road Board | 1924-25 |
| Warren | A. C. | Mullewa | Chevrolet | MW ● 1 | Mullewa Road Board | 1925-26 |
| Warren | A. C. | Mullewa | Chevrolet | MW ● 1 | Mullewa Road Board | 1926-27 |
| Warren | A. F. | Katanning | Ford 20 H.P. | KRB 25 | Katanning Road Board | 1915 |
| Warren | A. F. | Katanning | Ford 20 H.P. | KA 25 | Katanning Road Board | 1916 |
| Warren | C. | Bruce Rock | Ford | BK ● 5 | Bruce Rock Road Board | 1925-26 |
| Warren | C. | Bruce Rock | Ford | BK ● 5 | Bruce Rock Road Board | 1926-27 |
| Warren | C. | Bruce Rock | Ford | BK ● 5 | Bruce Rock Road Board | 1927-28 |
| Warren | C. | Katanning | Ford | KA ● 153 | Katanning Road Board | 1927-28 |
| Warren | E. D. | Katanning | Ford 20 H.P. | KA 57 | Katanning Road Board | 1916 |
| Warren | E. D. | Katanning | Ford 20 H.P. | KA ● 57 | Katanning Road Board | 1917-18 |
| Warren | E. D. | Katanning | Ford 20 H.P. | KA 57 | Katanning Road Board | 1919 |
| Warren | E. D. | Katanning | Ford 19 H.P. | KA ● 57 | Katanning Road Board | 1922-23 |
| Warren | E. D. | Katanning | Ford | KA ● 57 | Katanning Road Board | 1923-24 |
| Warren | E. D. C. | Warren Road | Ford | KT ● 9 | Kent Road Board | 1924-25 |
| Warren | E. D. C. | Warren Road | Ford | KT ● 9 | Kent Road Board | 1925-26 |
| Warren | E. D. C. | Warren Road | Ford | KT ● 9 | Kent Road Board | 1926-27 |
| Warren | E. D. C. | Warren Road | Ford | KT ● 9 | Kent Road Board | 1927-28 |
| Warren | F. | C/o Armstrong Cycle Agency | Triumph 3½ H.P. Motorcycle | P 746 | Perth Municipality | 1915 |
| Warren | F. | Paget Street, South Fremantle | Rugby | 12263 | Metro Private Car | 1927-28 |
| Warren | F. E. | Claremont | - | CRB 4 | Claremont Road Board | 1915 |
| Warren | F. H. | Paget Street, South Fremantle | Rugby | 12263 | Metro Private Car | 1926-27 |
| Warren | J. B. | Kalgan | Ford | A ● 29 | Albany Road Board | 1927-28 |
| Warren | J. C. | Badgebup | Ford | KA 77 | Katanning Road Board | 1919 |
| Warren | J. C. | Badgebup | Ford 19 H.P. | KA ● 77 | Katanning Toad Board | 1922-23 |
| Warren | J. C. | Badgebup | Ford | KA ● 77 | Katanning Road Board | 1923-24 |
| Warren | J. C. | Badgebup | Ford | KA ● 77 | Katanning Road Board | 1924-25 |
| Warren | J. C. | Katanning | Oakland | KA ● 77 | Katanning Road Board | 1927-28 |
| Warren | J. R. | Northam | Dodge | N ● 155 | Northam Road Board | 1925-26 |
| Warren | J. R. | Fitzgerald Street | Demonstration | N 205 | Northam Municipality | 1926-27 |
| Warren | Miss. | Kalgan | Ford | A ● 29 | Albany Road Board | 1926-27 |
| Warren | Mrs | Kalgan | Ford | A ● 29 | Albany Road Board | 1925-26 |
| Warren | Mrs C. | Ellesmore Road, Mount Lawley | Humber | 14861 | Metro Private Car | 1927-28 |
| Warren | Mrs Mabel | 34 Burt Street, Mount Lawley | Essex | 2803 | Metro Private Car | 1927-28 |
| Warren | R. W. A | Katanning | Gray | KA ● 43 | Katanning Road Board | 1924-25 |
| Warren | R. W. A. | Katanning | Maxwell 22 H.P. | KRB 43 | Katanning Road Board | 1915 |
| Warren | R. W. A. | Katanning | Maxwell 20 H.P. | KA 43 | Katanning Road Board | 1916 |
| Warren | R. W. A. | Katanning | Maxwell 20 H.P. | KA ● 43 | Katanning Road Board | 1917-18 |
| Warren | R. W. A. | Katanning | Maxwell 20 H.P. | KA 43 | Katanning Road Board | 1919 |
| Warren | R. W. A. | Katanning | Maxwell | KA ● 43 | Katanning Road Board | 1922-23 |
| Warren | R. W. A. | Katanning | Maxwell | KA ● 43 | Katanning Road Board | 1923-24 |
| Warren | R. W. A. | Katanning | Gray | KA ● 43 | Katanning Road Board | 1925-26 |
| Warren | R. W. A. | Katanning | Gray | KA ● 43 | Katanning Road Board | 1926-27 |
| Warren | R. W. A. | Katanning | Gray | KA ● 43 | Katanning Road Board | 1927-28 |
