| Martin | J. D. | Mount Barker | Buick | PL ● 28 | Plantagenet Road Board | 1927-28 |
| Martin | J. McN. | Mount Barker Estate, Mount Barker | Overland 20 H.P. | PL ● 33 | Plantagenet Road Board | 1919 |
| Martin | J. McNeil | Mount Barker | Overland 20 H.P. | PL ● 33 | Plantagenet Road Board | 1923-24 |
| Martin | J. McNeill | Mount Barker | Overland 20 H.P | PL ● 33 | Plantagenet Road Board | 1922-23 |
| Martin | John L. | - | Studebaker 25 H.P. | KAN 2 | Kanowna Municipality | 1915 |
| Martin | John L. | Kanowna | Studebaker | K ● 33 | Kalgoorlie Road Board | 1926-27 |
| Martin | John L. | Kanowna | Studebaker | K ● 33 | Kalgoorlie Road Board | 1927-28 |
| Martin | L. | 104 Keightley Road | Motorcycle | S 64 | Subiaco Municipality | 1917-18 |
| Martin | L. | 104 Keightley Road | - | S 64 | Subiaco Municipality | 1919 |
| Martin | Mrs A. N. | Mount Barker | Citroen | PL ● 109 | Plantagenet Road Board | 1924-25 |
| Martin | Mrs J. M. | Mount Barker Estate | Studebaker | PL ● 82 | Plantagenet Road Board | 1924-25 |
| Martin | Mrs J. M. | Mount Barker | Studebaker | PL ● 82 | Plantagenet Road Board | 1925-26 |
| Martin | Mrs J. M. | Mount Barker | Studebaker | PL ● 82 | Plantagenet Road Board | 1926-27 |
| Martin | Mrs L. E. | Mount Barker | Bean | PL ● 80 | Plantagenet Road Board | 1927-28 |
| Martin & Walker | - | Narembeen | Chevrolet Wagon | NB ● 205 | Narembeen Road Board | 1927-28 |
| Maru | A. | 11 Mandurah Road, Fremantle | Studebaker | 1862 | Metro Private Car | 1922-23 |
| Maru | A. | 11 Mandurah, Road, Fremantle | Studebaker | 1862 | Metro Private Car | 1923-24 |
| 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. E. | Doodlakine | Davis | KE ● 382 | Kellerberrin Road Board | 1927-28 |
| Mason | C. L. | 4 Milligan Street, Perth | Studebaker | 8530 | Metro Private Car | 1925-26 |
| Mason | G. | Kelmscott | Ford | 12604 | Metro Private Car | 1926-27 |
| Mason | G. | Kelmscott | Ford | 12604 | Metro Private Car | 1927-28 |
| 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 |
| Massingham | C. W. | Kellerberrin | Rugby | KE ● 149 | Kellerberrin Road Board | 1925-26 |
| Massingham | C. W. | Kellerberrin | Rugby | KE ● 149 | Kellerberrin Road Board | 1926-27 |
| Massingham | C. W. | Kellerberrin | Rugby | KE ● 149 | Kellerberrin Road Board | 1927-28 |
| Massingham | L. B. | Kellerberrin | Dodge 20 H.P. | KE 17 | Kellerberrin Road Board | 1919 |
| Massingham | L. B. | Kellerberrin | Essex | KE ● 17 | Kellerberrin Road Board | 1922-23 |
| Massingham | L. B. | Kellerberrin | Essex | KE ● 17 | Kellerberring Road Board | 1923-24 |
| Massingham | L. B. | Woolundra | Overland Truck | KE ● 125 | Kellerberrin Road Board | 1925-26 |
| Massingham | L. B. | Kellerberrin | Willys-Knight | KE ● 151 | Kellerberrin Road Board | 1925-26 |
| Massingham | L. B. | Kellerberrin | Overland Truck | KE ● 125 | Kellerberrin Road Board | 1926-27 |
| Massingham | L. B. | Kellerberrin | Willys-Knight | KE ● 151 | Kellerberrin Road Board | 1926-27 |
| Massingham | L. B. | Kellerberrin | Overland Truck | KE ● 125 | Kellerberrin Road Board | 1927-28 |
| Massingham | L. B. | Kellerberrin | Willys-Knight | KE ● 151 | Kellerberrin Road Board | 1927-28 |
| Massingham | L. V. | Kellerberrin | Essex | KE ● 17 | Kellerberrin Road Board | 1924-25 |
| Masters | A. | 182 Duke Street, East Fremantle | Overland | 12286 | Metro Private Car | 1926-27 |
| Masters | C. | - | Ford 20 H.P. | ME 18 | Meckering Road Board | 1916 |
| Masters | H. J. W. | Byford | Rugby | A-K ● 139 | Armadale-Kelmscott Road Board | 1927-28 |
| Mather | F. | Kellerberrin | Chevrolet Truck | KE ● 127 | Kellerberrin Road Board | 1925-26 |
| Mather | F. | Kellerberrin | Chevrolet Truck | KE ● 127 | Kellerberrin Road Board | 1926-27 |
| Mather | F. | Kellerberrin | Chevrolet Truck | KE ● 127 | Kellerberrin Road Board | 1927-28 |
| Mather | J. | Doodlakine | Ford Truck | KE ● 67 | Kellerberrin Road Board | 1924-25 |
| Mather | J. | Doodlakine | Ford Truck | KE ● 67 | Kellerberrin Road Board | 1925-26 |
| Mather | J. | Doodlakine | Ford Truck | KE ● 67 | Kellerberrin Road Board | 1926-27 |
| Mather | J. | Doodlakine | Ford Truck | KE ● 67 | Kellerberrin Road Board | 1927-28 |
