| Meller | J. H. | Swan Hotel, North Fremantle | Chevrolet | 9663 | Metro Private Car | 1926-27 |
| Mellerish & Son | H. | - | Federal Truck | CU ● 121 | Upper Chapman Road Board | 1927-28 |
| Mellersh | H. | - | Ford | CU ● 52 | Upper Chapman Road Board | 1924-25 |
| Mellersh | H. | - | Ford | CU ● 52 | Upper Chapman Road Board | 1925-26 |
| Mellersh | H. | - | Ford | CU ● 52 | Upper Chapman Road Board | 1926-27 |
| Mellersh | H. | - | Ford Truck | CU ● 89 | Upper Chapman Road Board | 1926-27 |
| Mellersh | H. | - | Ford Truck | CU ● 89 | Upper Chapman Road Board | 1927-28 |
| Mellersh | H. E. | - | Ford Truck | CU ● 89 | Upper Chapman Road Board | 1925-26 |
| Mellership | Mrs | Dumbleyung | Oldsmobile | DU ● 99 | Dumbleyung Road Board | 1925-26 |
| Mellership | Mrs | Dumbleyung | Oldsmobile | DU ● 99 | Dumbleyung Road Board | 1927-28 |
| Melloe | Irene | 18 Esplanade Perth | Austin | 944 | Metro Private Car | 1927-28 |
| Mellor | A. J. | A.M.P. Chambers | Buick 15 H.P. | P 752 | Perth Municipality | 1915 |
| Mellor | C. | Marine Terrace, Geraldton | Overland | GN 113 | Geraldton Municipality | 1925-26 |
| Mellor | C. | Marine Terrace, Geraldton | Overland | GN 113 | Geraldton Municipality | 1926-27 |
| Mellor | C. | Marine Terrace, Geraldton | Chevrolet | GN 113 | Geraldton Municipality | 1927-28 |
| Mellor | E. | 46 Chester Street, Fremantle | Dodge | 9744 | Metro Private Car | 1927-28 |
| Mellor | E. J. | Narrogin | Ford | NGN 30 | Narrogin Municipality | 1923-24 |
| Mellor | E. J. | Narrogin | Ford | NGN 30 | Narrogin Municipality | 1924-25 |
| Mellor | J. H. | 65 Dalgety Street, Fremantle | Chevrolet | 9663 | Metro Private Car | 1927-28 |
| Mellor | R. H. | Dally Street, Claremont | B.S.A. | 148 | Metro Motorcycle | 1922-23 |
| Mellow | E. J. | Narrogin | Ford | NGN 29 | Narrogin Municipality | 1922-23 |
| Mellowes | A. | Holyoake | Chevrolet | MY ● 101 | Murray Road Board | 1926-27 |
| Mellowes | A. | Holyoake | Chevrolet | MY ● 101 | Murray Road Board | 1927-28 |
| Mellows | A. E. | Hotham | Chevrolet | MR ● 20 | Marradong Road Board | 1925-26 |
| Mellows | A. E. | Hotham | Chevrolet | MR ● 20 | Marradong Road Board | 1926-27 |
| Mellows | E. J. | Narrogin | Dodge | NGN 30 | Narrogin Municipality | 1925-26 |
| Mellows | E. J. | 17 Woodsome Street, Mount Lawley | Studebaker | 1338 | Metro Private Car | 1926-27 |
| Mellows | E. M. | 70 Woodsome Street, Mount Lawley | Citroen | 5386 | Metro Private Car | 1927-28 |
| Meloncelli | A. | 171 Ascot Road, Victoria Park | Republic Wagon | 10521 | Metro Hire or Trade | 1926-27 |
| Meloncelli | A. | 139 Ascot Road, Victoria Park | Republic Truck | 10521 | Metro Hire or Trade | 1927-28 |
| Melos | P. | Hamel | Chevrolet Truck | DK ● 60 | Drakesbrook Road Board | 1927-28 |
| Melrose | Aubrey G. | Keane Street, Cottesloe | A.J.S. | 112 | Metro Motorcycle | 1922-23 |
| Melrose | R. A. | 74 Richmond Street, Leederville | Rugby | 6340 | Metro Private Car | 1924-25 |
| Melrose | R. A. | 74 Richmond Street, Leederville | Rugby | 6340 | Metro Private Car | 1925-26 |
| Melrose | R. A. | 74 Richmond Street, Leederville | Rugby | 6340 | Metro Private Car | 1927-28 |
| Melrose & CoLtd | - | Sheffield House Hay Street, Perth | Chevrolet | 12474 | Metro Private Car | 1927-28 |
| Melrose & Inglis | - | Williambury Station | Dodge 15 H.P. | GM ● 32 | Gascoyne-Minilya Road Board | 1919 |
| Melrose & Inglis | - | Williambury Station | Dodge 23 H.P. | GM ● 32 | Gascoyne Minilya Road Board | 1922-23 |
| Melrose & Inglis | - | Williambury Station | Dodge 23 H.P. | GM ● 32 | Gascoyne-Minilya Road Board | 1923-24 |
| Melrose & Inglis | - | Williambury | Dodge | GM ● 22 | Gascoyne-Minilya Road Board | 1924-25 |
| Melrose & Inglis | - | Williambury Station | Dodge | GM ● 32 | Gascoyne-Minilya Road Board | 1924-25 |
| Melrose & Inglis | - | Williambury | Dodge | GM ● 22 | Gascoyne-Minilya Road Board | 1925-26 |
| Melrose & Inglis | - | Williambury Station | Dodge | GM ● 32 | Gascoyne-Minilya Road Board | 1925-26 |
| Melrose & Inglis | - | Williambury | Dodge | GM ● 22 | Goscoyne-Mililya Road Board | 1926-27 |
| Melrose & Inglis | - | Williambury Station | Dodge | GM ● 32 | Goscoyne-Mililya Road Board | 1926-27 |
| Melrose & Inglis | - | Wiiliambury | Dodge | GM ● 22 | Gascoyne Minilya Road Board | 1927-28 |
| Melrose & Inglis | - | Williambury Station | Dodge | GM ● 32 | Gascoyne Minilya Road Board | 1927-28 |
| Melville Road Board | - | Canning Road, Bicton | Oakland | 4725 | Metro Private Car | 1923-24 |
| Melville Road Board | - | Canning Road, Bicton | Vulcan Wagon | 1835 | Metro Private Car | 1925-26 |
| Melville Road Board | - | Bicton | Minerva | 4570 | Metro Private Car | 1926-27 |
