| Clark | John | Yalgoo Hotel | Fiat | YA ● 3 | Yalgoo Road Board | 1924-25 |
| Clark | John | Yalgoo | Overland | YA ● 57 | Yalgoo Road Board | 1925-26 |
| Clark | John | Yalgoo | Overland | YA ● 57 | Yalgoo Road Board | 1926-27 |
| Clark | John | Yalgoo | Overland | YA ● 57 | Yalgoo Road Board | 1927-28 |
| Clark | John | Denmark | Oldsmobile | DE ● 1 | Denmark Road Board | 1927-28 |
| Clark | Joseph G. | 29 Dudley Street, Maylands | Ford Truck | 9865 | Metro Private Car | 1927-28 |
| Clark | L. S. | 547 William Street, North Perth | Ford | 1376 | Metro Private Car | 1923-24 |
| Clark | M. B. | Wellington Street, Cottesloe Beach | Ford | 6005 | Metro Private Car | 1924-25 |
| Clark | M. B. | Wellington Street, Cottesloe Beach | Ford | 6005 | Metro Private Car | 1925-26 |
| Clark | M. B. | Carnamah | Overland | CA ● 92 | Carnamah Road Board | 1927-28 |
| Clark | Mrs C J. | Fitzgerald Street, Perth | Chevrolet | 11795 | Metro Private Car | 1927-28 |
| Clark | Mrs C. C. | Pingelly | Ford 20 H.P. | PN 11 | Pingelly Road Board | 1916 |
| Clark | Mrs D. | 17 Langsford Street, Claremont | Chevrolet | 13641 | Metro Private Car | 1926-27 |
| Clark | Mrs F | 59 Clotilde Street, Mount Lawley | Wolseley | 13931 | Metro Private Car | 1927-28 |
| Clark | Mrs F. | 59 Clotilde Street, Mount Lawley | Wolseley | 13931 | Metro Private Car | 1926-27 |
| Clark | Mrs J. | 6 Bondi Street, Mount Hawthorn | Ford | 1082 | Metro Private Car | 1926-27 |
| Clark | N. | Uaroo | Arno 3½ H.P. Motorcycle | - | Ashburton Road Board | 1916 |
| Clark | N. H. | Onslow | Ford 15 H.P. | AS ● 2 | Ashburton Road Board | 1917-18 |
| Clark | N. H. | Onslow | Ford 15 H.P. | AS ● 2 | Ashburton Road Board | 1919 |
| Clark | Neil | Onslow | Essex | AS ● 58 | Ashburton Road Board | 1924-25 |
| Clark | Neil | Onslow | Essex | AS ● 58 | Ashburton Road Board | 1925-26 |
| Clark | P. C. D. | 184 Carr Street, Perth | Reo Wagon | 10407 | Metro Hire or Trade | 1926-27 |
| Clark | P. C. D. | 10 Blake Street, North Perth | Whippet | 14892 | Metro Private Car | 1927-28 |
| Clark | R. | 204 Subiaco Road | - | S 80 | Subiaco Municipality | 1919 |
| Clark | R. | Bondi Street, Mount Hawthorn | Whippet | 5318 | Metro Private Car | 1927-28 |
| Clark | R. B. | Hampton Plains | Ford Truck | K ● 68 | Kalgoorlie Road Board | 1927-28 |
| Clark | R. J. | Halbert Service Ltd, Murray Street | Jewett | 13900 | Metro Private Car | 1926-27 |
| Clark | R. W. | Three Springs | Chevrolet | CA ● 18 | Carnamah Road Board | 1925-26 |
| Clark | R. W. | Three Springs | Oakland | CA ● 18 | Carnamah Road Board | 1926-27 |
| Clark | R. W. | Three Springs | Oakland | CA ● 18 | Carnamah Road Board | 1927-28 |
| Clark | Rev P. | Wyalkatchem | Overland | WM ● 123 | Wyalkatchem Road Board | 1925-26 |
| Clark | S. | Hines Hill | Ford | MD ● 159 | Merredin Road Board | 1927-28 |
| Clark | T. | King Street, Perth | Republic Wagon | 3617 | Metro Hire or Trade | 1924-25 |
| Clark | T. F. | 116 Brisbane Street, Perth | Chevrolet | 1830 | Metro Private Car | 1927-28 |
| Clark | T. W. | Kalgoorlie | Chevrolet | K ● 100 | Kalgoorlie Road Board | 1925-26 |
| Clark | W. | Mount Magnet | Dodge | MA ● 45 | Mount Magnet Road Board | 1925-26 |
| Clark | W. | Mount Magnet | Dodge | MA ● 45 | Mount Magnet Road Board | 1926-27 |
| Clark | W. | Mount Marnet | Oldsmobile | MA ● 63 | Mount Magnet Road Board | 1927-28 |
| Clark | W. E. | - | Dodge 12 H.P. | WM 1 | Wagin Municipality | 1917-18 |
| Clark | W. E. | - | Dodge 12 H.P. | WM ● 1 | Wagin Municipality | 1919 |
| Clark | W. E. | Wagin | Dodge | WN 39 | Wagin Municipality | 1925-26 |
| Clark | W. E. | Wagin | Dodge | WN 39 | Wagin Municipality | 1926-27 |
| Clark | W. G. | Chidlow | Ford Van | GE ● 28 | Greenmount Road Board | 1925-26 |
| Clark | W. G. | Chidlows | Ford Van | GE ● 28 | Greenmount Road Board | 1927-28 |
| Clark | W. J. | Kondut | Hupmobile | WB ● 6 | Wongan-Ballidu Road Board | 1927-28 |
| Clark | W. J. | Kondut | Vulcan Truck | WB ● 170 | Wongan-Ballidu Road Board | 1927-28 |
| Clark | W. T. | Wagin | - | W 1 | Wagin Municipality | 1915 |
| Clark | W. T. | Wagin | - | W 1 | Wagin Municipality | 1916 |
| Clark | W. T. | Dumbleyung | Studebaker | DU ● 47 | Dumbleyung Road Board | 1925-26 |
| Clark | W. T. | 50 Cambridge Street, Leederville | Buick | 9870 | Metro Private Car | 1926-27 |
