| Clarke | W. | Jurokine | Overland | GO ● 49 | Goomalling Road Board | 1927-28 |
| Clarke | W. B. | Dinninup | Chevrolet | BU ● 27 | Upper Blackwood Road Board | 1925-26 |
| Clarke | W. B. | Dinninup | Chevrolet | BU ● 27 | Upper Blackwood Road Board | 1926-27 |
| Clarke | W. B. | Dinninup | Chevrolet | BU ● 27 | Upper Blackwood Road Board | 1927-28 |
| Clarke | W. E. | - | Dodge | WM 1 | Wagin Municipality | 1922-23 |
| Clarke | W. E. | - | Dodge | WM ● 1 | Wagin Municipality | 1923-24 |
| Clarke | W. E. | Perenjeri | Chevrolet | PM ● 6 | Perenjori-Morawa Road Board | 1924-25 |
| Clarke | W. E. | Wagin | Dodge | WN 1 | Wagin Municipality | 1925-26 |
| Clarke | W. E. | Perenjori | Overland | PM ● 6 | Perenjori-Morawa Road Board | 1925-26 |
| Clarke | W. E. | Wagin | Dodge | WN ● 1 | Wagin Municipality | 1926-27 |
| Clarke | W. E. | Wagin | Dodge | WN 1 | Wagin Municipality | 1927-28 |
| Clarke | W. H. | | Ford | GO ● 87 | Goomalling Road Board | 1926-27 |
| Clarke | W. J | Kondut | Hupmobile | WB ● 6 | Wongan-Ballidu Road Board | 1926-27 |
| Clarke | W. J | Kondut | Vulcan Truck | WB ● 170 | Wongan-Ballidu Road Board | 1926-27 |
| Clarke | W. J. | 109 Chelmsford Road | Chevrolet 20 H.P. | P 105 | Perth Municipality | 1917-18 |
| Clarke | W. J. | 109 Chelmsford Road | Dodge 20 H.P. | P 105 | Perth Municipality | 1919 |
| Clarke | W. J. | 59 Clothilde Street, Mount Lawley | Citroen | 4649 | Metro Private Car | 1925-26 |
| Clarke | W. T. | 167 Saint George's Terrace, Perth | A. E. C. Wagon | 3172 | Metropolitan Hire and Trade Cars | 1923-24 |
| Clarke | W. T. | 167 Saint George's Terrace, Perth | Int. Wagon | 3329 | Metropolitan Hire and Trade Cars | 1923-24 |
| Clarke | Walter | 19 Clifton Crescent, Mount Lawley | Overland | 2458 | Metro Private Car | 1923-24 |
| Clarke | Walter | 19 Clifton Crescent, Mount Lawley | Overland | 2458 | Metro Private Car | 1924-25 |
| Clarke | William Howard | Gosnells | Ford 20 H.P. | GS ● 4 | Gosnells Road Board | 1917-18 |
| Clarke | Wm. H. | Gosnells | Willys-Knight | GS ● 4 | Gosnells Road Board | 1922-23 |
| Clarke | Wm. Hy. | Gosnells | Ford 20 H.P. | GS ● 4 | Gosnells Road Board | 1919 |
| Clarke | Wm. T. | 167 Saint George's Terrace, Perth | A.E.C. wagon | 3172 | Metro Vehicle for Hire | 1922-23 |
| Clarke | Wm. T. | Rosevery Avenue, South Perth | Austin | 3183 | Metro Vehicle for Hire | 1922-23 |
| Clarke & Broad | - | Pullagaroo Station, Paynes Find | Overland | YA ● 44 | Yalgoo Road Board | 1923-24 |
| Clarke & Broad | - | Pullagaroo Station, Paynes Find | Overland | YA ● 44 | Yalgoo Road Board | 1924-25 |
| Clarke & Broad | - | Pullagaroo Station, Paynes Find | Overland | YA ● 44 | Yalgoo Road Board | 1925-26 |
| Clarke & Broad | - | Pullagaroo Station, Paynes Find | Overland | YA ● 44 | Yalgoo Road Board | 1927-28 |
| Clarke & Broard | - | Pullagaroo Station, Paynes Find | Overland | YA ● 44 | Yalgoo Road Board | 1926-27 |
| Clarke & Co | - | Dumbleyung | Ford 20 H.P. | DU ● 24 | Dumbleyung Road Board | 1922-23 |
| Clarke & Co | - | Dumbleyung | Dodge | DU ● 24 | Dumbleyung Road Board | 1923-24 |
| Clarke & Co | - | 70 King Street, Perth | Republic Wagon | 10172 | Metro Hire or Trade | 1926-27 |
| Clarke & Co | - | 70 King Street, Perth | Ford Wagon | 10180 | Metro Hire or Trade | 1926-27 |
| Clarke & Co | J. | Onslow | Ford Truck | AS ● 48 | Ashburton Road Board | 1925-26 |
| Clarke & Co | T. | 80 King Street, Perth | Republic Wagon | 10172 | Metro Hire or Trade | 1927-28 |
| Clarke & Doig | - | Toodyay | Chevrolet | T ● 2 | Toodyay Road Board | 1923-24 |
| Clarke & Doig | - | Toodyay | Essex | T ● 2 | Toodyay Road Board | 1925-26 |
| Clarke & Doig | - | Toodyay | Essex | T ● 2 | Toodyay Road Board | 1926-27 |
| Clarke & Doig | - | Toodyay | Chevrolet | T ● 2 | Toodyay Road Board | 1927-28 |
| Clarke & Hayes | - | Meekatharra | Overland | MK ● 46 | Meekatharra Road Board | 1923-24 |
| Clarke & Phillips | - | Fitzgerald Street | Overland | N 42 | Northam Municipality | 1917-18 |
| Clarke & Phillips | - | Fitzgerald Street | Overland | N 42 | Northam Municipality | 1919 |
| Clarke & Sons | A.P. | 920 Hay Street, Perth | Ford Wagon | 5983 | Metro Private Car | 1924-25 |
| Clarke & Webster | - | King Street, Perth | Hudson | 115 | Metro Private Car | 1922-23 |
| Clarke & Webster | - | King Street, Perth | Hudson | 135 | Metro Private Car | 1922-23 |
| Clarke & Webster | - | King Street, Perth | Hudson | 744 | Metro Private Car | 1922-23 |
| Clarke & Webster | - | King Street, Perth | Hudson | 115 | Metro Private Car | 1923-24 |
| Clarke & Webster | - | King Street, Perth | Hudson | 135 | Metro Private Car | 1923-24 |
