| Mount Monger Property Ltd | - | Mount Monger | Ford 20 H.P. | K ● 40 | Kalgoorlie Road Board | 1923-24 |
| Mount Monger Propty. Ltd | - | Mount Monger | Ford 20 H.P. | K ● 40 | Kalgoorlie Road Board | 1922-23 |
| Mountain | A. | 107 First Avenue, Mount Lawley | Dodge | 4985 | Metro Private Car | 1926-27 |
| Mountain | A. H. | Cathedral Avenue, Geraldton | Chevrolet | GN 50 | Geraldton Municipality | 1925-26 |
| Mountain | A. H. | Cathedral Avenue, Geraldton | Cheverolet | GN 50 | Geraldton Municipality | 1926-27 |
| Mountain | A. H. | Shenton Street, Geraldton | Chevrolet | GN 50 | Geraldton Municipality | 1927-28 |
| Mountford | P. C. | Northam | Brockway | N ● 70 | Northam Road Board | 1924-25 |
| Mountford | P. C. | Northam | Brockway | N ● 70 | Northam Road Board | 1925-26 |
| Mounton | L. J. | Beverley | Chevrolet | BE ● 249 | Beverley Road Board | 1927-28 |
| Mourits | J. J. | Kalamunda | Ford | DR ● 47 | Darling Range Road Board | 1924-25 |
| Mouritz | E. | Katanning | Humber 8 H.P. | KRB 12 | Katanning Road Board | 1915 |
| Mouritz | E. | Katanning | Humber 8 H.P. | KA 12 | Katanning Road Board | 1916 |
| Mouritz | E. | Katanning | Humber 8 H.P. | KA ● 12 | Katanning Road Board | 1917-18 |
| Mouritz | E. | Katanning | Humber 8 H.P. | KA 12 | Katanning Road Board | 1919 |
| Mouritz | E. A. | Gnowangerup | Overland | GN ● 105 | Gnowangerup Road Board | 1925-26 |
| Mouritz | E. A. | Gnowangerup | Overland | GN ● 105 | Gnowangerup Road Board | 1926-27 |
| Mouritz | E. A. | Gnowangerup | Chrysler | GN ● 105 | Gnowangerup Road Board | 1927-28 |
| Mouritz | Emma | Katanning | Gray | KA ● 12 | Katanning Road Board | 1924-25 |
| Mouritz | Emma | Katanning | Gray | KA ● 12 | Katanning Road Board | 1925-26 |
| Mouritz | H. | Katanning | Ford | KA ● 7 | Katanning Road Board | 1923-24 |
| Mouritz | H. | Katanning | Chevrolet | KA ● 7 | Katanning Road Board | 1925-26 |
| Mouritz | H. C. | Katanning | Ford 20 H.P. | KRB 24 | Katanning Road Board | 1915 |
| Mouritz | H. C. | Katanning | Ford 20 H.P. | KA 24 | Katanning Road Board | 1916 |
| Mouritz | H. C. | Katanning | Ford | KA ● 249 | Katanning Road Board | 1926-27 |
| Mouritz | H. C. | Katanning | Ford | KA ● 249 | Katanning Road Board | 1927-28 |
| Mouritz | H. J. | Moornaming | Gray Truck | KT ● 56 | Kent Road Board | 1927-28 |
| Mouritz | I. I. | Koolberrin | Dodge | NB ● 73 | Narembeen Road Board | 1925-26 |
| Mouritz | I. I. | Koolberrin | Dodge | NB ● 73 | Narembeen Road Board | 1926-27 |
| Mouritz | J. | Katanning | Buick | KA ● 256 | Katanning Road Board | 1926-27 |
| Mouritz | J. | Katanning | Buick | KA ● 256 | Katanning Road Board | 1927-28 |
| Mouritz | Mrs A. | Marine Terrace, Geraldton | Overland | GN 85 | Geraldton Municipality | 1925-26 |
| Mouritz | P. L. | - | Ford 12 H.P. | GN 23 | Geraldton Municipality | 1915 |
| Mouritz | P. L. | Geraldton | Ford 21 H.P. | GN 23 | Geraldton Municipality | 1916 |
| Mouritz | W. J. | 64 Stone Street, West Perth | Austin | 4579 | Metro Private Car | 1926-27 |
| Mouritzen | C. F. | Imperial Hotel | Ford 20 H.P. | P 83 | Perth Municipality | 1915 |
| Mouritzen | C. F. | Esplanade, South Perth | Willy Knight | 2591 | Metro Private Car | 1923-24 |
| Mouritzen | C. F. | Esplanade, South Perth | Willys-Knight | 2591 | Metro Private Car | 1924-25 |
| Mouritzen | C. F. | Esplanade, South Perth | Willys-Knight | 2591 | Metro Private Car | 1925-26 |
| Mouritzen | C. F. | Esplanade, South Perth | Willys-Knight | 2591 | Metro Private Car | 1927-28 |
| Mouritzen | C. F. J | South Perth | Willys-Knight | 2591 | Metro Private Car | 1926-27 |
| Mousset | L. | Hay Street, Perth | Ford 20 H.P. | P 405 | Perth Municipality | 1917-18 |
| Moustaka | T. | Geraldton | Ford 20 H.P. | GN 38 | Geraldton Municipality | 1916 |
| Moustaka | T. | - | Dodge 25 H.P. | GN 1 | Geraldton Municipality | 1917-18 |
| Moustaka | T. | - | Dodge 25 H.P. | GN 1 | Geraldton Municipality | 1919 |
| Moustaka | T. | - | Dodge 23 H.P. | GN 1 | Geraldton Municipality | 1922-23 |
| Moustaka | T. | - | Dodge 23 H.P. | GN ● 1 | Geraldton Municipality | 1923-24 |
| Moustaka | T. | Geraldton | Dodge | GN 1 | Geraldton Municipality | 1924-25 |
| Moustaka | T. | 93 Colin Street, West Perth | Dodge | 7621 | Metro Private Car | 1925-26 |
| Moustaka | T. | 93 Colin Street, West Perth | Austin | 13943 | Metro Private Car | 1926-27 |
| Moustaka | T. F. | 93 Colin Street, West Perth | Austin | 13943 | Metro Private Car | 1927-28 |
