| Shires Bros | - | - | Chevrolet | NR ● 4 | Northampton Road Board | 1926-27 |
| Shock | F. | Coolgardie | Ford | CG ● 49 | Coolgardie Road Board | 1926-27 |
| Shoebridge | W. J. | 141 Railway Road, Subiaco | Chevrolet | 5838 | Metro Private Car | 1927-28 |
| Shoesmith | W. H. | North Dandalup | Ford | MY ● 45 | Murray Road Board | 1923-24 |
| Sholl | A. | 16 Waylen Road, West Subiaco | Chevrolet | 7443 | Metro Private Car | 1926-27 |
| Sholl | A. | 16 Waylen Road, West Subiaco | Chevrolet | 7443 | Metro Private Car | 1927-28 |
| Sholl | Heratio E. | Berrigrin | Ford 19 H.P. | BR ● 2 | Black Range Road Board | 1922-23 |
| Sholl | Horatio E. | Berrigrin | Ford 19 H.P. | BR ● 2 | Black Range Road Board | 1923-24 |
| Sholl | O. | 16 Waylen Road, Subiaco | Rugby | 8659 | Metro Private Car | 1925-26 |
| Sholl | V. M | Cnr. Broome & John Street, Cottesloe | Morris-Cowley | 9048 | Metro Private Car | 1927-28 |
| Sholl | V. M. | Cnr. Broome & John Street, Cottesloe | Morris-Cowley | 9048 | Metro Private Car | 1926-27 |
| Sholl | W. M. | Cnr. Broome & John Street, Cottesloe | Morris-Cowley | 9048 | Metro Private Car | 1925-26 |
| Sholl Bros | - | Berrigrin. via Sandstone | Rugby | BR ● 6 | Black Range Road Board | 1926-27 |
| Sholl Bros | - | Berrigrin Via Sandstone | Rugby | BR ● 6 | Black Range Road Board | 1927-28 |
| Shoosmith | W. | N. Dandalup | Dodge | MY ● 200 | Murray Road Board | 1927-28 |
| Shoosmith | W. H. | North Dandalup | Ford | MY ● 45 | Murray Road Board | 1924-25 |
| Shoosmith | W. N. | Dandalup | Dodge | MY ● 200 | Murray Road Board | 1926-27 |
| Shooter | Geo. | Ravensthorpe | Ford 20 H.P. | PR ● 12 | Phillips River Road Board | 1919 |
| Short | H. E. | 207 Adelaide Terrace, Perth | Ford | 13984 | Metro Private Car | 1926-27 |
| Short | H. E. | 207 Adelaide Terrace, Perth | Ford | 9307 | Metro Private Car | 1926-27 |
| Short | H. E. | 207 Adelaide Terrace, Perth | Ford | 13984 | Metro Private Car | 1927-28 |
| Short | H. T. | Bridge Street, Guildford | Dodge | 358 | Metro Private Car | 1922-23 |
| Short | J. T. | Railway Department | Halley 40 H.P. | P 644 | Perth Municipality | 1915 |
| Short | J. T. | 5 Altona Street, Perth | Dodge | 358 | Metro Private Car | 1923-24 |
| Short | J. T. | 5 Altona Street, Perth | Austin | 358 | Metro Private Car | 1925-26 |
| Short | J. T. | 5 Altona Street, Perth | Dodge | 358 | Metro Private Car | 1926-27 |
| Short | J. T. | 5 Altona Street, Perth | Dodge | 358 | Metro Private Car | 1926-27 |
| Shorthouse | A. | Bendering | Ford | CR ● 51 | Corrigin Road Board | 1923-24 |
| Shorthouse | A. | Bendering | Ford | CR ● 51 | Corrigin Road Board | 1924-25 |
| Shorthouse | A. | Bendering | Dodge | CR ● 51 | Corrigin Road Board | 1925-26 |
| Shorthouse | A. | Kondinin | Dodge | KN ● 5 | Kondinin Road Board | 1925-26 |
| Shorthouse | A. | Kondinin | Dodge | KN ● 5 | Kondinin Road Board | 1926-27 |
| Shorthouse | A. | Kondinin | Dodge | KN ● 5 | Kondinin Road Board | 1927-28 |
| Shortill | J. | Donnybrook | Nash | PE ● 33 | Preston Road Board | 1924-25 |
| Shortill | J. | Donnybrook | Nash | PE ● 33 | Preston Road Board | 1925-26 |
| Shortill | J. | Donnybrook | Darracq | PE ● 89 | Preston Road Board | 1925-26 |
| Shortill | J. | Donnybrook | Nash | PE ● 33 | Preston Road Board | 1926-27 |
| Shortill | J. | Donnybrook | Darracq | PE ● 89 | Preston Road Board | 1926-27 |
| Shortill | J. | Donnybrook | Darracq | PE ● 89 | Preston Road Board | 1927-28 |
| Shortill | J. | Donnybrook | Nash | PE ● 33 | Preston Road Board | 1927-28 |
| Shossmith | W. H. | North Dandalup | Ford | MY ● 45 | Murray Road Board | 1925-26 |
| Shreeve | A. R | Walgoolan | Chevrolet Truck | WT ● 27 | Westonia Road Board | 1926-27 |
| Shreeve | A. R. | Westonia | Chevrolet Truck | WT ● 27 | Westonia Road Board | 1927-28 |
| Shrine | C. W. | Albany | Bean Charabanc | A 63 | Albany Municipality | 1927-28 |
| Shrine | C. W. | Albany | Ford Charabanc | A 64 | Albany Municipality | 1927-28 |
| Shruth | H. F. | Union Hotel, Aberdeen Street, Perth | Willys Knight | 4396 | Metro Private Car | 1925-26 |
| Shruth | H. F. | | Willys-Knight | 4396 | Metro Private Car | 1926-27 |
| Shruth | H. F. | Union Hotel, Aberdeen Street, Perth | Willys-Knight | 4396 | Metro Private Car | 1927-28 |
| Shugg | H. G. | School of Agriculture, Narrogin | Buick | NA ● 24 | Narrogin Road Board | 1922-23 |
| Shugg | H. G. | Narrogin | Ford | NA ● 24 | Narrogin Road Board | 1923-24 |
