| Lansell | E. H. | York | Austin | Y 109 | York Municipality | 1926-27 |
| Lansell | E. H. | York | Austin | Y 109 | York Municipality | 1927-28 |
| Lansell | F. N. | Ravensthorpe | Chevrolet 20 H.P. | PR ● 8 | Phillips River Road Board | 1917-18 |
| Lansell | F. N. | Ravensthorpe | Chevrolet 20 H.P. | PR ● 8 | Phillips River Road Board | 1919 |
| Lansell | Q. S. | 109 Keightley Road, Subiaco | Chevrolet | 9228 | Metro Private Car | 1927-28 |
| Lansell & Hayden | - | York | Ford | Y 7 | York Municipality | 1922-23 |
| Lansell & Hayden | - | York | Ford | Y 7 | York Municipality | 1923-24 |
| Lansell & Hayden | - | York | Studebaker | Y 73 | York Municipality | 1924-25 |
| Lansell & Hayden | - | York | Studebaker | Y 73 | York Municipality | 1925-26 |
| Lansell & Hayden | - | York | Studebaker | Y 73 | York Municipality | 1926-27 |
| Lansell & Hayden | - | York | Studebaker | Y 73 | York Municipality | 1927-28 |
| Lantske | F. | Stirling Street, Markets Perth | Overland | 1644 | Metro Private Car | 1927-28 |
| Lantzke | F. W. | Horonda Brewery, Subiaco | Adams Wagon | 4707 | Metro Private Car | 1923-24 |
| Lantzke | F. W. | Stirling Street Markets, Perth | Adams Wagon | 3173 | Metropolitan Hire and Trade Cars | 1923-24 |
| Lantzke | Fred | Stirling Street, Markets | Overland | 485 | Metro Private Car | 1922-23 |
| Lantzke | Fred | Stirling Street Markets, Perth | Overland | 485 | Metro Private Car | 1923-24 |
| Lantzke | Fred | Stirling Street, Markets Perth | Overland | 485 | Metro Private Car | 1924-25 |
| Lantzke | Fred | Stirling Street, Markets Perth | Overland | 485 | Metro Private Car | 1925-26 |
| Lanvenge | W. H. | Southern Brook | Dodge | N ● 75 | Northam Road Board | 1925-26 |
| Lanyon | V. | Armadale | Ford | A-K ● 69 | Armadale-Kelmscott Road Board | 1924-25 |
| Lanyon | V. | Armadale | Ford | A-K ● 69 | Armadale-Kelmscott Road Board | 1925-26 |
| Lapham | A. | Lane Street, Boulder | Triumph Motorcycle | B 6 | Boulder Municipality | 1922-23 |
| Lapham | A. E. | 4 Maritana Street | E.M.F. 20 H.P. | KMC 39 | Kalgoorlie Municipality | 1916 |
| Lapham | E. | Bourke Street | Werland 20 H.P. | KMC 23 | Kalgoorlie Municipality | 1919 |
| Lapham | J. | Trayning | Overland Truck | KTY ● 105 | Kununoppin-Trayning Road Board | 1925-26 |
| Lapham | John A. | Lakeside | Ford | K ● 43 | Kalgoorlie Road Board | 1923-24 |
| Lapham Kalgoorlie Elec. Light Wks. Stn. | E. | - | Douglas Motorcycle | KMC 165 | Kalgoorlie Municipal Council | 1922-23 |
| Laphorn | E. | 34 Bourke Street, Kalgoorlie | Dodge | KMC ● 4 | Kalgoorlie Municipality | 1923-24 |
| Laphorn | E. | 34 Bourke Street, Kalgoorlie | Essex | KMC 4 | Kalgoorlie Municipal Council | 1924-25 |
| Laphorn | E. | 34 Bourke Street, Kalgoorlie | Essex | KMC 4 | Kalgoorlie Municipality | 1924-25 |
| Laphorn | F. J. | Onslow | Dodge | AS ● 51 | Ashburton Road Board | 1925-26 |
| Laphorn | F. J. | Onslow | Dodge | AS ● 51 | Ashburton Road Board | 1926-27 |
| Laphorn | F. J. | Onslow | Dodge | AS ● 51 | Ashburton Road Board | 1927-28 |
| Lapsley | Edric | 6 Wright Street, Perth | Oakland | 807 | Metro Private Car | 1923-24 |
| Lapsley | Edric | 6 Wright Street, Perth | Oakland | 807 | Metro Private Car | 1926-27 |
| Lapsley | Edric | 6 wright Street, Perth | Oakland | 807 | Metro Private Car | 1927-28 |
| Lapsley | Edrie | 6 Wright Street | Oakland 18 H.P. | P 807 | Perth Municipality | 1919 |
| Lapsley | Eric | 6 Wright Street, Perth | Oakland | 807 | Metro Private Car | 1922-23 |
| Lapsley | Eric | 6 Wright Street, Perth | Oakland | 807 | Metro Private Car | 1924-25 |
| Lapsley | Eric | 6 Wright Street, Perth | Oakland | 807 | Metro Private Car | 1925-26 |
| Lapsley | Everlyn | 6 Wright Street | Oakland 17 H.P. | P 807 | Perth Municipality | 1917-18 |
| Lapsley | J. & E. | 41 Princess Road, Nedlands | Whippet | 14223 | Metro Private Car | 1926-27 |
| Lapsley | J. F. T. | W. A. Fire Brigades Board | Jackson 40 H.P. | P 118 | Perth Municipality | 1915 |
| Lapsley | J. H. | 133 Brown Street, East Perth | Ford | 9872 | Metro Private Car | 1926-27 |
| Lapsley | J. H. | 133 Brown Street, East Perth | Ford | 9872 | Metro Private Car | 1927-28 |
| Lapsley | J. L. | 30 Irwin Street | Rudge 3½ H.P. Motorcycle | P 650 | Perth Municipality | 1915 |
| Lapsley | J. L. | Nedlands Park | - | CL 10 | Claremont Road Board | 1916 |
| Lapsley | J. L. & E. D. | Princes Road, Nedlands | Overland | 1043 | Metro Private Car | 1924-25 |
| Lapsley | J. L. and E. D. | 13 Highway, Nedlands | Overland | 1043 | Metro Private Car | 1923-24 |
| Lapsley | J. N. & E. D. | Princess Road, Nedlands | Overland | 9043 | Metro Private Car | 1925-26 |
