| Staer | F. G. | 5 Halbert Street, Fremantle | Little | 1856 | Metro Private Car | 1923-24 |
| Staer | F. G. | 5 Halbert Street, Fremantle | Little | 1856 | Metro Private Car | 1924-25 |
| Stafford | G. | Mornington | Overland | H ● 24 | Harvey Road Board | 1924-25 |
| Stafford | G. | Mornington | Overland | H ● 24 | Harvey Road Board | 1925-26 |
| Stafford | G. | Mornington | Overland | H ● 24 | Harvey Road Board | 1926-27 |
| StafFord | Geo. | Mornington | Overland | H ● 24 | Harvey Road Board | 1922-23 |
| Stafford | George | Mornington | Chevrolet | H ● 24 | Harvey Road Board | 1923-24 |
| Stafford | H. | Narembeen | Chevrolet Wagon | NB ● 94 | Narembeen Road Board | 1927-28 |
| Stafford | H. E. | Burracoppin | Ford | MD ● 36 | Merredin Road Board | 1923-24 |
| Stafford | H. E. | Burracoppin | Ford | MD ● 36 | Merredin Road Board | 1924-25 |
| Stafford | H. E. | Burracoppin | Ford | MD ● 36 | Merredin Road Board | 1925-26 |
| Stafford | H. J. | - | Ford Truck | MW ● 100 | Mullewa Road Board | 1927-28 |
| Stafford | S. W. | 31 Kent Street, Victoria Park | Dodge | 6461 | Metro Private Car | 1924-25 |
| Stafford | W. | 31 Kent Street, Victoria Park | Ford | 14424 | Metro Private Car | 1927-28 |
| Stafford & O'Sullivan | - | Goomalling | Traffic Truck | GO ● 145 | Goomalling Road Board | 1925-26 |
| Stafford & O'Sullivan | - | Goomalling | Traffic Truck | GO ● 145 | Goomalling Road Board | 1926-27 |
| Stagbouer | G. F. | Marradong | Ford | MR ● 8 | Marradong Road Board | 1924-25 |
| Stagbouer | G. F. | Marradong | Ford | MR ● 8 | Marradong Road Board | 1925-26 |
| Stagbouer | G. F. | Marradong | Ford | MR ● 8 | Marradong Road Board | 1926-27 |
| Stagbouer | G. F. | Marradong | Ford | MR ● 8 | Marradong Road Board | 1927-28 |
| Stagbouer | G. F. | Marradong | Ford | MR ● 38 | Marradong Road Board | 1927-28 |
| Stagg | W. | Nungarin | Chevrolet | NA ● 12 | Nungarin Road Board | 1924-25 |
| Stagg | W. | Nungarin | Chevrolet | NA ● 12 | Nungarin Road Board | 1925-26 |
| Stagg | W. A. | Nungarin | Ford | NA ● 12 | Nullagine Road Board | 1922-23 |
| Stagg | W. N. | Nungarin | Fiat | NA ● 12 | Nungarin Road Board | 1927-28 |
| Stahan | H. E. | Toodyay | Ford Truck | T ● 20 | Toodyay Road Board | 1925-26 |
| Stain | W. J. | 135 William Street, Perth | Overland | 4433 | Metro Private Car | 1923-24 |
| Stain | W. J. | 280 Murray Street, Perth | Overland | 4433 | Metro Private Car | 1924-25 |
| Stain | W. J. | 280 Murray Street, Perth | Overland | 4433 | Metro Private Car | 1926-27 |
| Stain | W. J. | 280 Murray Street, Perth | Overland | 4433 | Metro Private Car | 1927-28 |
| Staines | E. J. | Roberts Road, Como | Ford Wagon | 10086 | Metro Hire or Trade | 1926-27 |
| Stainland | C. | Albany Road, Gosnells | Morris- Cowley | 8278 | Metro Private Car | 1925-26 |
| Stainland | C. | Albany Road, Gosnells | Morris-Cowley | 8278 | Metro Private Car | 1926-27 |
| Staker | F. L. | Arnold Street, Gosnells | Chevrolet | 14661 | Metro Private Car | 1927-28 |
| Stakes | James | Cunderdin | Dodge | ME ● 99 | Meckering Road Board | 1924-25 |
| Stakes | James | Cunderdin | Dodge | ME ● 99 | Meckering Road Board | 1925-26 |
| Stakes | James | Cunderdin | Dodge | ME ● 99 | Meckering Road Board | 1926-27 |
| Stakie | W. | 39 Gloster Street, Subiaco | Darracq | 1839 | Metro Private Car | 1926-27 |
| Stakle | W. | 39 Gloster Street, Subiaco | Darracq | 1839 | Metro Private Car | 1927-28 |
| Stalley | W. | Peak Hill | Ford Truck | MK ● 1 | Meekatharra Road Board | 1924-25 |
| Stalley | W. | Peak Hill | Reo Truck | MK ● 58 | Meekatharra Road Board | 1926-27 |
| Stalley | W. | Peak Hill | Reo Truck | MK ● 58 | Meekatharra Road Board | 1927-28 |
| Stalley | William | Peak Hill | Ford 22-4 H.P. | MK 1 | Meekatharra Roads Borad | 1916 |
| Stalley | William | Peak Hill | Ford 22-4 H.P. | MK ● 1 | Meekatharra Road Board | 1917-18 |
| Stalley | William | Peak Hill | Ford 22 H.P. | MK 1 | Meekatharra Road Board | 1919 |
| Stalley | Wm. | Peak Hill | Buick | MK ● 12 | Meekatharra Road Board | 1922-23 |
| Stalley | Wm. | Peak Hill | Ford Truck | MK ● 12 | Meekatharra Road Board | 1923-24 |
| Stamarti | J. | 256 Wellington Street, Perth | Chevrolet Wagon | 7301 | Metro Private Car | 1925-26 |
| Stamas | D. H. | 491 Hay Street | King Dick 3 H.P. Motorcycle | P 720 | Perth Municipality | 1917-18 |
| Stamatis | J. | Palladium Market Fremantle | Chevrolet Wagon | 7301 | Metro Private Car | 1926-27 |
