| Morgan | W. E. | Coolup | Ford | MY ● 30 | Murray Road Board | 1926-27 |
| Morgan | W. H. | Northam | Ford 20 H.P. | N ● 9 | Northam Road Board | 1917-18 |
| Morgan | W. H. | Northam | Ford 20 H.P. | N 9 | Northam Road Board | 1919 |
| Morgan | W. H. | Northam | Ford | N ● 34 | Northam Road Board | 1922-23 |
| Morgan | W. H. | Northam | Ford | N ● 34 | Northam Road Board | 1923-24 |
| Morgan | W. H. | Northam | Ford | N ● 34 | Northam Road Board | 1924-25 |
| Morgan | W. H. | Northam | Ford | N ● 34 | Northam Road Board | 1925-26 |
| Morgan | W. H. | Northam | Ford | N ● 34 | Northam Road Board | 1926-27 |
| Morgan | W. H. | Northam | Ford | N ● 34 | Northam Road Board | 1927-28 |
| Morgan | Wm. | Koorda | Gray | WM ● 61 | Wyalkatchem Road Board | 1923-24 |
| Morgan | Wm. | Koorda | Gray | WM ● 61 | Wyalkatchem Road Board | 1924-25 |
| Morgan | Wm. | Koorda | Ford | WM ● 61 | Wyalkatchem Road Board | 1925-26 |
| Morgan-Brooker | J. | Metropole Garage, Hay Street | Studebaker 20 H.P. | P 555 | Perth Municipality | 1919 |
| Morgan-Brooker | J. R. | Hotel Metropole | Studebaker 30 H.P. | P 161 | Perth Municipality | 1919 |
| Morgans | A. W. | - | Ford 15 H.P. Private Car | CD ● 5 | Cue-Day Dawn Road Board | 1917-18 |
| Morgans | A. W. | - | Ford 15 H.P. | CD ● 5 | Cue-Day Dawn Road Board | 1919 |
| Morgans | M. | Balingup | Studebaker | BN ● 58 | Balingup Road Board | 1927-28 |
| Moriarty | A. | Boyup | Rugby | PL ● 42 | Plantagenet Road Board | 1925-26 |
| Moriarty | A. | Boyup | Rugby | PL ● 42 | Plantagenet Road Board | 1926-27 |
| Moriarty | Arthur | Mount Barker | Rugby | PL ● 38 | Plantagenet Road Board | 1927-28 |
| Moriarty | Arthur. | Mount Barker | Rugby | PL ● 42 | Plantagenet Road Board | 1924-25 |
| Moriarty | J. | Bridgetown | Ford | B ● 75 | Bridgetown Road Board | 1924-25 |
| Moriarty | J. | Bridgetown | Ford | B ● 75 | Bridgetown Road Board | 1925-26 |
| Moriarty | J. | Bridgetown | Ford | B ● 75 | Bridgetown Road Board | 1926-27 |
| Moriarty | J. | Bridgetown | Ford | B ● 75 | Bridgetown Road Board | 1927-28 |
| Moriarty | Mrs F. | Tunney via Kojonup | Ford | CB ● 43 | Cranbrook Road Board | 1927-28 |
| Moris | R. | Bruce Rock | Overland | BK ● 175 | Bruce Rock Road Board | 1925-26 |
| Morissy | P. | Poplar Downs Station, Cue | Buick | CD ● 33 | Cue-Day Dawn Road Board | 1924-25 |
| Morle | A. R. | - | Ford Truck | NO ● 29 | Narrogin Road Board | 1927-28 |
| Morlet | Claude Dr. | 252 Saint George's Terrace, Perth | Dodge | 1317 | Metro Private Car | 1923-24 |
| Morlet | Dr | Lister House, Saint George's Terrace | Bean | 9712 | Metro Private Car | 1926-27 |
| Morlet | Dr | Lister House, Saint George's Terrace | Bean | 9712 | Metro Private Car | 1927-28 |
| Morlet | Dr Claude | 474 Fitzgerald Street, North Perth | Buick | 1317 | Metro Private Car | 1924-25 |
| Morley | - | 42 Harvey Street, Victoria Park | Morris-Cowley | 14214 | Metro Private Car | 1926-27 |
| Morley | A. | Chittering | Chevrolet | CH ● 4 | Chittering Road Board | 1924-25 |
| Morley | A. | Chittering | Chevrolet | CH ● 4 | Chittering Road Board | 1925-26 |
| Morley | A. | Chittering | Willys-Knight | CH ● 4 | Chittering Road Board | 1926-27 |
| Morley | A. | Chittering | Willys-Knight | CH ● 4 | Chittering Road Board | 1927-28 |
| Morley | Alex | Chittering | Chevrolet | CH ● 4 | Chittering Road Board | 1923 - 1924 |
| Morley | C. | 248 Saint George's Terrace, Perth | Dodge | 1317 | Metro Private Car | 1922-23 |
| Morley | C. L. | 164 Lord Street, Perth | Dodge | 13007 | Metro Private Car | 1926-27 |
| Morley | C. M. | Chittering | Oakland 18 H.P. | CH ● 1 | Chittering Road Board | 1917-18 |
| Morley | C. M. | Chittering | Oakland 18 H.P. | CH ● 1 | Chittering Road Board | 1919 |
| Morley | C. M. | Chittering | Overland | CH ● 1 | Chittering Road Board | 1922-23 |
| Morley | C. M. | Chittering | Oakland | CH ● 1 | Chittering Road Board | 1923 - 1924 |
| Morley | C. M. | Chittering | Oakland | CH ● 1 | Chittering Road Board | 1924-25 |
| Morley | C. M. | Chittering | Oakland | CH ● 1 | Chittering Road Board | 1925-26 |
| Morley | C. M. | Chittering | Oakland | CH ● 1 | Chittering Road Board | 1926-27 |
| Morley | C. M. | Chittering | Oakland | CH ● 1 | Chittering Road Board | 1927-28 |
| Morley | H. | Chittering | Oakland | CH ● 28 | Chittering Road Board | 1926-27 |
