| Maskiell | E. A. | Swanbourne Terrace, Cottesloe | Buick | 13315 | Metro Private Car | 1926-27 |
| Maskiell | E. A. | Swanbourne Terrace, Cottesloe | Buick | 13315 | Metro Private Car | 1927-28 |
| Maslim | F. H. | Darlington | Pontiac | 6773 | Metro Private Car | 1927-28 |
| Maslin | F. | Albany | Fiat | A 12 | Municipality of Albany | 1924-25 |
| Maslin | F. | Albany | Fiat | A 12 | Municipality of Albany | 1925-26 |
| Maslin | F. | Albany | Fiat | A 12 | Albany Municipality | 1927-28 |
| Maslin | F. H. | Darlington | Chevrolet | 14708 | Metro Private Car | 1927-28 |
| Maslin | G. | Bridgetown | Oldsmobile | B ● 85 | Bridgetown Road Board | 1926-27 |
| Maslin | G. | Bridgetown | Oldsmobile | B ● 85 | Bridgetown Road Board | 1927-28 |
| Maslin | G. A. | Ningham Station via Yalgoo | Ford | DL ● 39 | Dalwallinu Road Board | 1923-24 |
| Maslin | G. A. | Ningham Station | Ford | DL ● 39 | Dalwallinu Road Board | 1924-25 |
| Maslin | S. | Bunbury | Ford | BY 51 | Bunbury Municipality | 1927-28 |
| Mason | A. | Lowden | Studebaker | PE ● 29 | Preston Road Board | 1925-26 |
| Mason | A. | Lowen | Studebaker | PE ● 29 | Preston Road Board | 1926-27 |
| Mason | A. | Lowden | Studebaker | PE ● 29 | Preston Road Board | 1927-28 |
| Mason | C J. | C/o W. A. Farmers Ltd. Perth | Chevrolet | 8955 | Metro Private Car | 1926-27 |
| Mason | C. E. | 32 Railway Parade, West Perth | Davis | 13758 | Metro Private Car | 1926-27 |
| Mason | C. E. | Doodlakine | Davis | KE ● 382 | Kellerberrin Road Board | 1927-28 |
| Mason | C. J. | C/o W. A. Farmers Ltd. Perth | Chevrolet | 8955 | Metro Private Car | 1927-28 |
| Mason | C. L. | 4 Milligan Street, Perth | Studebaker | 8530 | Metro Private Car | 1925-26 |
| Mason | Cecil L | Devonshire Flats Milligan St | Erskine | 4801 | Metro Private Car | 1927-28 |
| Mason | E. F. | Dudinin | Chevrolet Truck | KU ● 99 | Kulin Road Board | 1927-28 |
| Mason | E. M. | 107 Mandurah Road, Fremantle | Whippet | 12402 | Metro Private Car | 1927-28 |
| Mason | F. | Riley Road, Claremont | Rugby Wagon | 1377 | Metro Private Car | 1925-26 |
| Mason | F. | Riley Road, Claremont | Rugby Wagon | 1377 | Metro Private Car | 1926-27 |
| Mason | F. | Riley Road, Claremont | Rugby Wagon | 1377 | Metro Private Car | 1927-28 |
| Mason | G. | - | Ford | MD ● 44 | Merredin Road Board | 1925-26 |
| Mason | G. | - | Ford | MD ● 44 | Merredin Road Board | 1926-27 |
| Mason | G. | Kelmscott | Ford | 12604 | Metro Private Car | 1926-27 |
| Mason | G. | Kelmscott | Ford | 12604 | Metro Private Car | 1927-28 |
| Mason | G. T. | Meekatharra | Chevrolet Truck | MK ● 23 | Meekatharra Road Board | 1927-28 |
| Mason | Geo. | Woodanilling | Chevrolet | WO ● 58 | Woodanilling Road Board | 1925-26 |
| Mason | Geo. | Domestic P.S. | Chevrolet | MK ● 23 | Meekatharra Road Board | 1926-27 |
| Mason | J. | Wandering | Studebaker | WD ● 12 | Wandering Road Board | 1926-27 |
| Mason | J. | Wandering | Studebaker | WD ● 12 | Wandering Road Board | 1927-28 |
| Mason | J. L. | Bulwer Street | Studebaker 20 H.P. | P 993 | Perth Municipality | 1919 |
| Mason | J. W. | 59 Forrest Street, Kalgoorlie | Ford | KMC 348 | Kalgoorlie Municipal Council | 1927-28 |
| Mason | M. | 110 Coogee Street, Mount Hawthorn | Dodge | 11462 | Metro Private Car | 1926-27 |
| Mason | M. | 110 Coogee Street, Mount Hawthorn | Dodge | 11462 | Metro Private Car | 1927-28 |
| Mason | Mrs D | Riley Road, Claremont | Maxwell | 8228 | Metro Private Car | 1927-28 |
| Mason | Mrs D. | Riley Road, Claremont | Maxwell | 8228 | Metro Private Car | 1926-27 |
| Mason | O. J. | 9 Moir Street | Ford 20 H.P. | P 1267 | Perth Municipality | 1919 |
| Mason | R. H. | Narrogin | B.S.A. Cycle 7 H.P. Motorcycle | NGN 11 | Narrogin Municipality | 1922-23 |
| Mason | Rev. J | Toodyay | Ford | T ● 55 | Toodyay Road Board | 1926-27 |
| Mason | Rev. J. | Toodyay | Ford | T ● 55 | Toodyay Road Board | 1925-26 |
| Mason | Rev. J. | Toodyay | Ford | T ● 55 | Toodyay Road Board | 1927-28 |
| Mason | S. R. | 18 Little Howard Street, Fremantle | Whippet | 15915 | Metro Private Car | 1927-28 |
| Mason | W. E. | 42 Sussex Street, Victoria Park | Ford | 7802 | Metro Private Car | 1925-26 |
| Mason | W. E. | 52 Gresham Street, Victoria Park | Rugby | 7802 | Metro Private Car | 1926-27 |
| Mason | W. E. | 52 Gresham Street, Victoria Park | Rugby | 7802 | Metro Private Car | 1927-28 |
