| Ottwell | B. | 59 Broadway, Nedlands | Dodge | 6560 | Metro Private Car | 1926-27 |
| Otway | A. E. | Beverley | Ford | BE ● 261 | Beverley Road Board | 1927-28 |
| Otway | George | - | Ford Truck | BE ● 252 | Beverley Road Board | 1926-27 |
| Ouealy | M. J. | 232 William Street, Perth | Ford | 2939 | Metro Private Car | 1927-28 |
| Oughton | A. W. | Kondinin | Ford Truck | KN ● 104 | Kondinin Road Board | 1926-27 |
| Oughton | A. W. | Kondinin | Ford Truck | KN ● 104 | Kondinin Road Board | 1927-28 |
| Oulds | S. L. | Dowerin | Buick | D ● 59 | Dowerin Road Board | 1927-28 |
| Outram | H. S. | Stock Road, Hamilton Hill | Ford Van | 7032 | Metro Private Car | 1925-26 |
| Outram | H. S. | Stock Road, Hamilton Hill | Ford Van | 7032 | Metro Private Car | 1926-27 |
| Outram | H. S. | Stock Road, Hamilton Hill | Ford Van | 7032 | Metro Private Car | 1927-28 |
| Ovely | T. | Cardiff | Chevrolet | CO ● 20 | Collie Road Board | 1925-26 |
| Ovens | Hugh | Meekatharra | Buick 15-18 H.P. | MK ● 2 | Meekatharra Road Board | 1917-18 |
| Ovens | Hugh | Meekatharra | Buick 15 H.P. | MK 2 | Meekatharra Road Board | 1919 |
| Ovens | Hugh | Nannine | Buick | MK ● 2 | Meekatharra Road Board | 1922-23 |
| Ovens | J. | Gwambygine | Ford Truck | Y ● 113 | York Road Board | 1925-26 |
| Ovens | J. H. | Gwambygine | Ford Truck | Y ● 113 | York Road Board | 1926-27 |
| Ovens | J. H. | Gwambygine | Chevrolet | Y ● 113 | York Road Board | 1927-28 |
| Ovens | N. | Meekatharra | Buick 15-18 H.P. | MK 2 | Meekatharra Roads Borad | 1916 |
| Ovens | W. | Gwambygine | Dodge | Y ● 96 | York Road Board | 1925-26 |
| Ovens | Wm. | Gwambygine | Dodge | Y ● 120 | York Road Board | 1926-27 |
| Ovens | Wm. | Gwambygine | Overland | Y ● 120 | York Road Board | 1927-28 |
| Over'heu | W. P. | Lomos | Ford | CR ● 12 | Corrigin Road Board | 1924-25 |
| Overheu | C. H. | Brookton | Ford 20 H.P. | BO ● 16 | Brookton Road Board | 1917-18 |
| Overheu | C. H. | Brookton | Ford 20 H.P. | BO ● 7 | Brookton Road Board | 1919 |
| Overheu | C. H. | Brookton | Ford 20 H.P. | BO ● 7 | Brookton Road Board | 1922-23 |
| Overheu | C. H. | Brookton | Ford | BO ● 7 | Brookton Road Board | 1923-24 |
| Overheu | C. H. | Brookton | Ford | BO ● 7 | Brookton Road Board | 1924-25 |
| Overheu | C. H. | Brookton | Dodge | BM ● 7 | Broome Road Board | 1925-26 |
| Overheu | F. C. | 11 A.M.P. Buildings, Perth | Overland | 7738 | Metro Private Car | 1925-26 |
| Overheu | F. C. | 11 A.M.P. Buildings, Perth | Overland | 7738 | Metro Private Car | 1926-27 |
| Overheu | F. C. | 11 A.M.P. Buildings, Perth | Overland | 7738 | Metro Private Car | 1927-28 |
| Overheu | F. R. | Lomos | Ford | CR ● 5 | Corrigin Road Board | 1923-24 |
| Overheu | F. R. | Lomos | Buick | CR ● 55 | Corrigin Road Board | 1923-24 |
| Overheu | F. R. | Lomos | Ford | CR ● 5 | Corrigin Road Board | 1924-25 |
| Overheu | F. R. | Lomos | Buick | CR ● 55 | Corrigin Road Board | 1924-25 |
| Overheu | F. R. | Lomos | Ford | CR ● 5 | Corrigin Road Board | 1925-26 |
| Overheu | F. R. | Lomos | Buick | CR ● 55 | Corrigin Road Board | 1925-26 |
| Overheu | F. R. | Lomos | Ford | CR ● 5 | Corrigin Road Board | 1926-27 |
| Overheu | F. R. | Lomos | Buick | CR ● 55 | Corrigin Road Board | 1926-27 |
| Overheu | H. B. | Lomos | Ford 20 H.P. | CR ● 5 | Corrigin Road Board | 1917-18 |
| Overheu | H. B. | Lomos | Ford 20 H.P. | CR ● 5 | Corrigin Road Board | 1919 |
| Overheu | H. C. F. | Pingelly West | Dodge 20 H.P. | PN ● 39 | Pingelly Road Board | 1919 |
| Overheu | H. C. F. | Pingelly West | Dodge 20 H.P | PN ● 39 | Pingelly Road Board | 1922-23 |
| Overheu | H. C. F. | 17 Rheola Street, West Perth | Dodge | 2899 | Metro Private Car | 1924-25 |
| Overheu | H. C. F. | 17 Rheola Street, West Perth | Dodge | 2899 | Metro Private Car | 1925-26 |
| Overheu | H. C. F. | 17 Rheola Street, West Perth | Dodge | 2899 | Metro Private Car | 1926-27 |
| Overheu | H. C. F. | 17 Rheola Street, West Perth | Dodge | 2899 | Metro Private Car | 1927-28 |
| Overheu | W. P. | Lomos | Ford | CR ● 12 | Corrigin Road Board | 1922-23 |
| Overheu | W. P. | Lomos | Ford | CR ● 12 | Corrigin Road Board | 1923-24 |
| Overheu | W. P. | Lomos | Dodge | CR ● 12 | Corrigin Road Board | 1925-26 |
