| Merredin & Vermin Board | - | - | Ford | MD ● 1 | Merredin Road Board | 1924-25 |
| Merredin & Vermin Board | - | - | Ford | MD ● 1 | Merredin Road Board | 1926-27 |
| Merredin Agency | C. | Merredin | Overland | MD ● 236 | Merredin Road Board | 1926-27 |
| Merredin Agency | C. | Merredin | Overland | MD ● 237 | Merredin Road Board | 1926-27 |
| Merredin and Vermin Board | - | Merredin | Ford 19 H.P. | MD ● 1 | Merredin Road Board | 1923-24 |
| Merredin Co-op Store | - | Merredin | Ford Truck | MD ● 109 | Merredin Road Board | 1927-28 |
| Merredin Co-op. | - | Merredin | Ford | MD ● 7 | Merredin Road Board | 1922-23 |
| Merredin Co-op. | - | Merredin | Ford | MD ● 7 | Merredin Road Board | 1923-24 |
| Merredin Co-op. | - | Merredin | Ford | MD ● 7 | Merredin Road Board | 1924-25 |
| Merredin Co-op. | - | Merredin | Studebaker | MD ● 97 | Merredin Road Board | 1924-25 |
| Merredin Co-op. | - | Merredin | Ford Truck | MD ● 109 | Merredin Road Board | 1924-25 |
| Merredin Co-op. | - | Merredin | Ford Truck | MD ● 109 | Merredin Road Board | 1926-27 |
| Merredin Road Board | - | Merredin | Gray Truck | MD ● 201 | Merredin Road Board | 1926-27 |
| Merredin Road Board | - | Merredin | Gray Truck | MD ● 202 | Merredin Road Board | 1926-27 |
| Merredin Road Board | - | Merredin | Gray Truck | MD ● 203 | Merredin Road Board | 1926-27 |
| Merredin Road Board | - | - | Chevrolet | MD ● 1 | Merredin Road Board | 1927-28 |
| Merredin Road Board | - | Merredin | Gray Truck | MD ● 201 | Merredin Road Board | 1927-28 |
| Merredin Road Board | - | Merredin | Gray Truck | MD ● 202 | Merredin Road Board | 1927-28 |
| Merredin Road Board | - | Merredin | Gray Truck | MD ● 203 | Merredin Road Board | 1927-28 |
| Merredith | W. W. | Ardath | Ford | BK ● 22 | Bruce Rock Road Board | 1922-23 |
| Merredith | W. W. | Ardath | Ford | BK 22 | Bruce Rock Road Board | 1923 - 1924 |
| Merrell | Rev. J. | Wesley Manse, Guildford | Ford | 6294 | Metro Private Car | 1925-26 |
| Merrell & Hearman | - | - | Graham Truck | GM ● 14 | Goscoyne-Mililya Road Board | 1926-27 |
| Merrell & Hearman | - | Edaggle Station | Ford | Gm ● 21 | Goscoyne-Mililya Road Board | 1926-27 |
| Merrell Bros | - | - | Buick | CU ● 81 | Upper Chapman Road Board | 1927-28 |
| Merrett | Mrs F | 122 Abadare Road, West Subiaco | Whippet | 14003 | Metro Private Car | 1927-28 |
| Merrey | George | Wagin | Dodge | WN ● 3 | Wagin Municipality | 1926-27 |
| Merrick | M. | York | Hupmobile | Y 31 | York Municipality | 1923-24 |
| Merrick | M. (Junior) | York | Morris-Wagon | Y 88 | York Municipality | 1925-26 |
| Merrick | M. [junior] | York | Morris Wagon | Y 88 | York Municipality | 1926-27 |
| Merrick | M. [junior] | York | Morris-Wagon | Y 88 | York Municipality | 1927-28 |
| Merriden Co-op. | - | Merriden | Studebaker | MD ● 97 | Merredin Road Board | 1925-26 |
| Merriden Co-op. | - | Merriden | Ford Truck | MD ● 109 | Merredin Road Board | 1925-26 |
| Merriden Road Board | - | Merriden | Gray Truck | MD ● 201 | Merredin Road Board | 1925-26 |
| Merriden Road Board | - | Merriden | Gray Truck | MD ● 202 | Merredin Road Board | 1925-26 |
| Merriden Road Board | - | Merriden | Gray Truck | MD ● 203 | Merredin Road Board | 1925-26 |
| Merrie | James | Princess Buildings | Triumph 3½ H.P. Motorcycle | P 800 | Perth Municipality | 1916 |
| Merrissey | W. F. | Tardy Station, Yuin | Overland | YA ● 17 | Yalgoo Road Board | 1926-27 |
| Merrith | R. A. | 48 Hamersley Road, Subiaco | Oakland | 421 | Metro Private Car | 1926-27 |
| Merritt | J. E. | 17 Keightly Road, Subiaco | Willys-Knight | 9164 | Metro Private Car | 1925-26 |
| Merritt | J. E. | 17 Keightly Road, Subiaco | Willys-Knight | 9164 | Metro Private Car | 1926-27 |
| Merritt | J. E. | 17 Keightly Road, Subiaco | Willys-Knight | 9164 | Metro Private Car | 1927-28 |
| Merritt | Mrs F. | 122 Armadale Road, West Subiaco | Whippet | 14003 | Metro Private Car | 1926-27 |
| Merritt | R. A. | 48 Hamersley Road, Subiaco | Chevrolet | 421 | Metro Private Car | 1923-24 |
| Merritt | R. A. | 48 Hamersley Road, Subiaco | Chevrolet | 421 | Metro Private Car | 1925-26 |
| Merritt | R. A. | 48 Hamersley Road, Subiaco | Chevrolet | 421 | Metro Private Car | 1926-27 |
| Merritt | R. A. | 48 Hamersley Road, Subiaco | Oakland | 421 | Metro Private Car | 1927-28 |
| Merry | H. C. | 19 Barnfield Road, Claremont | Dodge | 13228 | Metro Private Car | 1926-27 |
| Merry | H. C. H. | 19 Barnfield Street, Claremont | Essex | 14643 | Metro Private Car | 1927-28 |
| Merrywaether | Dr R. C. | 22 Saint George's Terrace, Perth | Crossley | 4791 | Metro Private Car | 1924-25 |
