| Madell | J. A. | Pingelly East | Ford 20 H.P. | PN ● 26 | Pingelly Road Board | 1922-23 |
| Mader | A. A. | Woodanilling | Ford | WO ● 65 | Wagin Municipality | 1926-27 |
| Mader | A. A. | Woodanilling | Ford | WO ● 65 | Woodanilling Road Board | 1927-28 |
| Madersky | Evelina | 40 Queen's Crescent, Mount Lawley | Chevrolet | 2987 | Metro Private Car | 1927-28 |
| Maderson | W. | Maida Vale | Chevrolet Truck | DR ● 33 | Darling Range Road Board | 1927-28 |
| Madew | H. T. | Cunderdin | Ford | ME ● 87 | Meckering Road Board | 1923-24 |
| Madew | H. T. | Cunderdin | Ford | ME ● 87 | Meckering Road Board | 1924-25 |
| Madew | H. T. | Cunderdin | Ford | ME ● 87 | Meckering Road Board | 1925-26 |
| Madew | H. T. | Cunderdin | Ford | ME ● 87 | Meckering Road Board | 1926-27 |
| Madew | H. T. | Cunderdin | Ford | ME ● 87 | Meckering Road Board | 1927-28 |
| Madigan | D. | Yalgoo | Ford Truck | YA ● 88 | Yalgoo Road Board | 1927-28 |
| Madill | J. A. | East Pingelly | Ford | PN ● 26 | Pingelly Road Board | 1923-24 |
| Madill | J. A. | East Pingelly | Ford | PN ● 26 | Pingelly Road Board | 1924-25 |
| Madill | J. A. | East Pingelly | Ford | PN ● 26 | Pingelly Road Board | 1924-25 |
| Madill | J. A. | East Pingelly | Ford | PN ● 26 | Pingelly Road Board | 1925-26 |
| Madill | J. A. | East Pingelly | Ford | PN ● 26 | Pingelly Road Board | 1927-28 |
| Madill | T. A. | Corrigin | Ford 21 H.P. | CR 1 | Corrigin Road Board | 1916 |
| Madill | T. A. | Corrigin | Ford 21 H.P | CR ● 2 | Corrigin Road Board | 1917-18 |
| Madin | F. H. | 54 Holmesdale Road, West Midland | Morris Cowley | 12898 | Metro Private Car | 1927-28 |
| Madin | J. G. | Southern Cross | Ford | YL ● 35 | Yilgarn Road Board | 1926-27 |
| Madin | J. G. | - | Ford | YL ● 35 | Yilgarn Road Board | 1927-28 |
| Madrill | T. A. | - | Ford 21 H.P. | CR ● 2 | Corrigin Road Board | 1919 |
| Maengler | Mrs L | Cranbrook | Chevrolet | CB ● 57 | Cranbrook Road Board | 1927-28 |
| Maffiscione | J. | Maddington | Overland | 8262 | Metro Private Car | 1925-26 |
| Maffiscione | J. | Maddington | Overland | 8262 | Metro Private Car | 1926-27 |
| Maffiscioni | James | Maddington | Whippet | 12893 | Metro Private Car | 1927-28 |
| Magee | E. | Kulin | Ford | RE ● 97 | Roe Road Board | 1925-26 |
| Magee | J. | Northampton | Essex | NR ● 88 | Northampton Road Board | 1925-26 |
| Magee | J. | Northampton | Essex | NR ● 88 | Northampton Road Board | 1926-27 |
| Magee | J. | Northampton | Essex | NR ● 88 | Northampton Road Board | 1927-28 |
| Magee | J. O. | Kulin | Ford | KU ● 28 | Kulin Road Board | 1926-27 |
| Magee | J. O. | Kulin | Ford | KU ● 28 | Kulin Road Board | 1927-28 |
| Magee | Jas | Northhampton | Essex | NR ● 88 | Northampton Road Board | 1924-25 |
| Maggs | A. D. | 225 Beaufort Street, Perth | Overland | 9924 | Metro Private Car | 1926-27 |
| Maggs | A. D. | 225 Beaufort Street, Perth | Overland | 9924 | Metro Private Car | 1927-28 |
| Maggs | Mrs E. | 65 Lindsay Street, Perth | Ford | 4870 | Metro Private Car | 1923-24 |
| Maggs | Mrs E. | 65 Lindsay Street, Perth | Ford | 4870 | Metro Private Car | 1924-25 |
| Maggs | W. | Mukinbudin | Chevrolet Truck | NA ● 42 | Nungarin Road Board | 1925-26 |
| Magher | W. J. | Kwolyin | Ford Truck | BK ● 224 | Bruce Rock Road Board | 1927-28 |
| Magnetic Observatory | - | Watheroo | Citroen | M ● 37 | Moora Road Board | 1924-25 |
| Magnetic Observatory | - | Watheroo | Citroen | M ● 37 | Moora Road Board | 1925-26 |
| Magnetic Observatory | - | Watheroo | Citroen | M ● 37 | Moora Road Board | 1926-27 |
| Magnetic Observatory | - | Watheroo | Citroen | M ● 37 | Moora Road Board | 1927-28 |
| Magnus | A. M. | 774 Beaufort Street, Perth | Essex | 6838 | Metro Private Car | 1926-27 |
| Magnus | A. N. | Seventh Avenue, Maylands | Citroen | 6838 | Metro Private Car | 1925-26 |
| Magrath | A. J. | Kojonup | F.N. 2¾ H.P. Motorcycle | KpRB 1 | Kojonup Road Board | 1915 |
| Magrath | A. J. | Kojonup | 4½ H.P. Motorcycle | KO ● 1 | Kojonup Road Board | 1917-18 |
| Magrath | R. A. | Kojonup | Ford 20 H.P. | KO 17 | Kojonup Road Board | 1919 |
| Maher | A. | 103 Davis Street, Boulder | Willy's-Knight | B 32 | Boulder Municipality | 1923-24 |
| Maher | A. | 103 Davis Street, Boulder | Willys-Knight | B 32 | Boulder Municipality | 1924-25 |
