| Miles & Tipping | - | Albany | Ford 20 H.P. | A 86 | Albany Municipality | 1917-18 |
| Milford | F. F. | Congdon Street. | Buick 15 H.P. | Ce ● 27 | Cuballing Road Board | 1917-18 |
| Milford | F. F. | Suburban Road | Buick 18 H.P. | SP 142 | South Perth Municipality | 1919 |
| Milgun Pastoral Co | - | Milgun Station | Dodge | MK ● 48 | Meekatharra Road Board | 1925-26 |
| Milgun Pastoral Co | - | Milgun Station | Dodge | MK ● 48 | Meekatharra Road Board | 1926-27 |
| Milgun Pastorial Co | | Milgun Station | Dodge | MK ● 28 | Meekatharra Road Board | 1924-25 |
| Miliars Co | T. & T. | Perth | Ford | 11627 | Metro Private Car | 1927-28 |
| Miliars T. & T. Co | - | Perth | Ford | 11627 | Metro Private Car | 1926-27 |
| Milich | Fred | C/o. Salvation Army, Pier Street | Indian 7 H.P. | P 943 | Perth Municipality | 1916 |
| Mill | A. W. | Minnivale | Harley-Davidson 7-9 H.P. Motorcycle | D ● 7 | Dowerin Road Board | 1922-23 |
| Mill | J. D. | Hawkstone Street, Carlisle | Morris Cowley | 14878 | Metro Private Car | 1927-28 |
| Mill | W. | Gabbin | Ford | MM ● 31 | Mount Marshall Road Board | 1927-28 |
| Millar | - | Jarrahdale | Chevrolet | SJ ● 5 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Millar | A. | Jarrahdene | Dodge | AU ● 12 | Augusta Road Board | 1925-26 |
| Millar | A. | Jarrahdene | Dodge | AU ● 12 | Augusta Road Board | 1926-27 |
| Millar | A. | Jarrahdene | Dodge | AU ● 12 | Augusta Road Board | 1927-28 |
| Millar | A. E. | 356 Oxford Street, Leederville | Chevrolet | 14759 | Metro Private Car | 1927-28 |
| Millar | Arthur | Nannup | Dodge | BL ● 12 | Lower Blackwood Road Board | 1922-23 |
| Millar | C. J. | Forrest Street | Swift 3½ H.P. Motorcycle | PG ● 5 | Peppermint Grove Road Board | 1917-18 |
| Millar | C. R. | Bolgart | Ford | VP ● 55 | Victoria Plains Road Board | 1925-26 |
| Millar | C. R. | Bolgart | Ford | VP ● 55 | Victoria Plains Road Board | 1926-27 |
| Millar | C. R. | Bolgart | Ford | VP ● 55 | Victoria Plains Road Board | 1927-28 |
| Millar | F. W. | Champman Road | Douglas Motorcycle | GN 56 | Geraldton Municipality | 1922-23 |
| Millar | H. A. | 69 Hamersley Road, Subiaco | Durant | 14056 | Metro Private Car | 1927-28 |
| Millar | J. W. | 148 Joel Terrace | B.S.A. 3½ H.P. Motorcycle | P 311 | Perth Municipality | 1915 |
| Millar | Leslie C. | Narrogin | Essex | NGN 42 | Narrogin Municipality | 1927-28 |
| Millar | Leslie G | - | Essex | NGN 42 | Narrogin Municipality | 1926-27 |
| Millar | R. B. | Leonora | Dodge | LM ● 54 | Leonora-Malcolm Road Board | 1927-28 |
| Millar | T. B. | Bickley | Fiat Truck | DR ● 64 | Darling Range Road Board | 1925-26 |
| Millar | T. B. | Bickley | Fiat Truck | DR ● 64 | Darling Range Road Board | 1926-27 |
| Millar | T. B. | Kalamunda | Fiat Truck | DR ● 64 | Darling Range Road Board | 1927-28 |
| Millar | W. D. | Mundaring | Chevrolet Truck | GE ● 43 | Greenmount Road Board | 1926-27 |
| Millar | W. D. | Mundaring | Chevrolet Truck | GE ● 43 | Greenmount Road Board | 1927-28 |
| Millar's Timber & Trading Co Ltd | - | - | Dodge | N 188 | Northam Municipality | 1926-27 |
| Millard | A. | 5 Elizabeth Street, Maylands | Essex | 7994 | Metro Private Car | 1927-28 |
| Millard | J. | - | Studebaker 25 H.P. | GN 26 | Geraldton Municipality | 1915 |
| Millard | J. | Geraldton | Studebaker 25 H.P. | GN 26 | Geraldton Municipality | 1916 |
| Millard | J. | Eleanor Street, Geraldton | Oldsmobile | GN 99 | Geraldton Municipality | 1924-25 |
| Millard | J. | 5 Elizabeth Street, Maylands | Ford | 7994 | Metro Private Car | 1925-26 |
| Millard | J. | Sanford Street, Geraldton | Oldsmobile | GN 80 | Geraldton Municipality | 1925-26 |
| Millard | J. | Cnr. Lake & Bulwer streets, Perth | Dodge | 9382 | Metro Private Car | 1926-27 |
| Millard | J. | 5 Elizabeth Street, Maylands | Ford | 7994 | Metro Private Car | 1926-27 |
| Millard | J. W. | 5 Elizabeth Street, Maylands | Chrysler | 11313 | Metro Private Car | 1926-27 |
| Millard | J. W. | 5 Elizabeth Street, Maylands | Chrysler | 11313 | Metro Private Car | 1927-28 |
| Millard | John W. | Lake & Bulwer streets, Perth | Morris-Cowley | 1973 | Metro Private Car | 1927-28 |
| Millard | W. H. | Gardner Street, Como | Austin | 8035 | Metro Private Car | 1925-26 |
| Millard | W. H. | Gairdner Street | Dodge | N 46 | Northam Municipality | 1927-28 |
| Millard | W. H. | Gardner Street, Como | Dodge | 14619 | Metro Private Car | 1927-28 |
| Millard & Worthington | - | Eleanor Street, Geraldton | Armstrong-Siddeley | GN 190 | Geraldton Municipality | 1927-28 |
| Millars | L. G. | Narrogin | Studbaker | NGN 54 | Narrogin Municipality | 1923-24 |
