| Linton | W. | Quairading | Chevrolet Truck | Q ● 166 | Quairading Road Board | 1927-28 |
| Linton | W. C. | Quairading | Overland | Q ● 173 | Quairading Road Board | 1925-26 |
| Linton & Reeves | - | Burt Street, Boulder | Ford Truck | B 39 | Boulder Municipality | 1927-28 |
| Linton Janet | - | Kanowna | Dodge | K ● 59 | Kalgoorlie Road Board | 1925-26 |
| Linton Janet | - | Kanowna | Dodge | K ● 59 | Kalgoorlie Road Board | 1927-28 |
| Linwellyn | W. H. | Mary Street, Nedlands | Armstrong-Siddeley | 14032 | Metro Private Car | 1926-27 |
| Lionel | Sampson & Sons | Cliff Street, Fremantle | Dodge | 1829 | Metro Private Car | 1927-28 |
| Lionel Sampson & Sons | - | Cliff Street, Fremantle | Hupmobile | 1829 | Metro Private Car | 1924-25 |
| Lionel Sampson & Sons | - | Cliff Street, Fremantle | Dodge | 1829 | Metro Private Car | 1925-26 |
| Lionel Sampson & Sons | - | Cliff Street, Fremantle | Dodge | 1829 | Metro Private Car | 1926-27 |
| Lionel Samson & Co | | Caff Street, Fremantle | Dodge | 1829 | Metro Private Car | 1922-23 |
| Lionel Samson and Sons | - | Cliff Street, Fremantle | Hupmobile | 1829 | Metro Private Car | 1923-24 |
| Lippeatt | Mrs E. M. | 15 Onslow Road, East Fremantle | Ford | 4065 | Metro Private Car | 1923-24 |
| Lippeatt | Mrs E. M. | 15 Onslow Road, East Fremantle | Ford | 4065 | Metro Private Car | 1924-25 |
| Lippeatt | Mrs E. M. | 15 Onslow Road, East Fremantle | Chevrolet | 4065 | Metro Private Car | 1925-26 |
| Lippeatt | Mrs E. M. | 150 Onslow Road, East Fremantle | Ford | 4065 | Metro Private Car | 1926-27 |
| Lippiatt | Mrs E. | 15 Onslow Street, East Fremantle | Rugby | 4065 | Metro Private Car | 1927-28 |
| Lipple | L. J. | - | Reo Truck | CU ● 87 | Upper Chapman Road Board | 1925-26 |
| Lipple | L. J. | - | Reo Truck | CU ● 87 | Upper Chapman Road Board | 1926-27 |
| Lipple | L. J. | - | Bean Truck | CU ● 87 | Upper Chapman Road Board | 1927-28 |
| Lissiman | H. C. | Bay View Terrace, Claremont | Willys-Knight | 13271 | Metro Private Car | 1926-27 |
| Lissiman | H. C. | Bay View Terrace, Claremont | Willys-Knight | 13271 | Metro Private Car | 1927-28 |
| Lissman | N. C. | Gosnells | Rugby | 13761 | Metro Private Car | 1926-27 |
| Lissman | N. C. | Gosnells | Rugby | 13761 | Metro Private Car | 1927-28 |
| List | E. | Central Avenue, Maylands | Chevrolet | 7062 | Metro Private Car | 1925-26 |
| List | Mrs E. | 91 Central Avenue, Inglewood | Fiat | 11896 | Metro Private Car | 1926-27 |
| List | R. C. | 124 Railway Terrace, Maylands | Rugby | 3492 | Metro Hire or Trade | 1927-28 |
| Lister | G. | Mundijong | Ford Van | SJ ● 22 | Serpentine-Jarrahdale Road Board | 1925-26 |
| Lister | G. | Mundijong | Ford | SJ ● 24 | Serpentine-Jarrahdale Road Board | 1925-26 |
| Lister | G. | Jarrahdale | Ford | SJ ● 28 | Serpentine-Jarrahdale Road Board | 1925-26 |
| Lister | G. | Mundijong | Ford | SJ ● 24 | Serpentine-Jarrahdale Road Board | 1926-27 |
| Lister | G. | Jarrahdale | Ford Truck | SJ ● 61 | Serpentine-Jarrahdale Road Board | 1926-27 |
| Lister | G. | Mundijong | Ford | SJ ● 24 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Lister | G. | Jarrahdale | Ford Truck | SJ ● 61 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Lister | George | Mundijong | Ford 20 H.P. | SJ ● 12 | Serpentine-Jarrahdale Road Board | 1917-18 |
| Lister | George | Mundijong | Ford 20 H.P. | SJ ● 12 | Serpentine-Jarrahdale Road Board | 1919 |
| Lister | George | Mundijong | Ford 20 H.P. | SJ ● 12 | Serpentine-Jarrahdale Road Board | 1923-24 |
| Lister | Georges | Mundijong | Ford 20 H.P. | SJ ● 12 | Serpentine-Jarrahdale Road Board | 1922-23 |
| Lister | H. J. | Wyalkatchem | Victory | WM ● 105 | Wyalkatchem Road Board | 1927-28 |
| Lister | Mrs Louisa | Yearlering | Chevrolet | CR ● 139 | Corrigin Road Board | 1927-28 |
| Lister | P. | Yearlering | Chevrolet | CR ● 139 | Corrigin Road Board | 1925-26 |
| Lister | P. | Yearlering | Chevrolet | CR ● 139 | Corrigin Road Board | 1926-27 |
| Lister | W. | Yandanooka | Ford | MI ● 27 | Mingenew Road Board | 1925-26 |
| Lister | W. | Yandanooka | Ford | MI ● 27 | Mingenew Road Board | 1926-27 |
| Lister | W. | Yandanooka | Chevrolet | MI ● 123 | Mingenew Road Board | 1927-28 |
| Lister | William | 6 Ruislip Street, West Leederville | Chevrolet | 2259 | Metro Private Car | 1927-28 |
| Lister & Toy | - | 45 Langham Street, Nedlands | Chevrolet Wagon | 6334 | Metro Private Car | 1927-28 |
| Liston | J. | 18 Norfolk Street, Fremantle | Federal | 3856 | Metro Hire or Trade | 1925-26 |
| Litchfield | H. W. | Goomalling | Ford | GO ● 71 | Goomalling Road Board | 1927-28 |
| Litchfield | W. E. | Denmark | Ford | DE ● 79 | Denmark Road Board | 1927-28 |