| Scutar | T. W. | 37 Bruce Street, Nedlands | Overland | 4255 | Metro Private Car | 1927-28 |
| Scutt | H. D. | Greenbushes | Pullman 20 H.P. | GR 8 | Greenbushes Road Board | 1916 |
| Scutt | H. D. | Greenbushes | Pullman 20 H.P. | GR ● 8 | Greenbushes Road Board | 1917-18 |
| Scutt | H. D. | Greenbushes | Pullman 20 H.P. | GR ● 8 | Greenbushes Road Board | 1919 |
| Scutt | H. D. | Austin Street, Cue | Hupmobile | CD ● 28 | Cue-Day Dawn Road Board | 1922-23 |
| Scutt | H. D. | Austin Street, Cue | Hupmobile | CD ● 28 | Cue-Day Dawn Road Board | 1923-24 |
| Scutt | H. D. | Austin Street, Cue | Hupmobile | CD ● 28 | Cue-Day Dawn Road Board | 1924-25 |
| Scutt | H. D. | - | Hupmobile | MA ● 58 | Mount Magnet Road Board | 1926-27 |
| Scutt | H. D. | - | Hupmobile | MA ● 58 | Mount Magnet Road Board | 1927-28 |
| Scutter | G. | Kellerberrin | Motor Truck | KE ● 119 | Kellerberrin Road Board | 1924-25 |
| Scutter | H. | Kellerberrin | Chevrolet Truck | KE ● 344 | Kellerberrin Road Board | 1927-28 |
| Scutter Bros | - | Kellerberrin | Graham Truck | KE ● 14 | Kellerberrin Road Board | 1925-26 |
| Scutter Bros | - | Kellerberrin | Graham Truck | KE ● 14 | Kellerberrin Road Board | 1926-27 |
| Scutter Bros | - | Kellerberrin | Graham Truck | KE ● 14 | Kellerberrin Road Board | 1927-28 |
| Seaborn | E. F. | 23 Rathay Street, Victoria Park | Chevrolet | 14289 | Metro Private Car | 1927-28 |
| Seabrook | C. W. | - | Dodge | Y ● 5 | York Road Board | 1917-18 |
| Seabrook | C. W. | - | Dodge 20 H.P. | Y ● 5 | York Road Board | 1919 |
| Seabrook | C. W. | - | Essex 20 H.P. | Y ● 5 | York Road Board | 1922-23 |
| Seabrook | C. W. | - | Willy's-Knight | Y ● 5 | York Road Board | 1923-24 |
| Seabrook | C. W. | Marley | Hudson | Y ● 5 | York Road Board | 1924-25 |
| Seabrook | C. W. | Marley | Hudson | Y ● 5 | York Road Board | 1925-26 |
| Seabrook | S. | Tandegin | Ford Truck | MD ● 215 | Merredin Road Board | 1926-27 |
| Seabrook | S. | Tandegin | Ford Truck | MD ● 215 | Merredin Road Board | 1927-28 |
| Seaddan | J. | - | Chevrolet | P ● 42 | Perth Road Board | 1919 |
| Seage | W. | Shaftesbury Hotel, Perth | Ford | 2554 | Metro Private Car | 1924-25 |
| Seage | William | Shaftesbury Hotel, Perth | Ford | 2554 | Metro Private Car | 1923-24 |
| Seagrim | A. J. | Coolgardie | Ford Truck | CG ● 24 | Coolgardie Road Board | 1925-26 |
| Seagrim | A. J. | Coolgardie | Ford Truck | CG ● 24 | Coolgardie Road Board | 1926-27 |
| Seagrott | George | Wiluna | Ford 20 H.P. | WU 1 | Wiluna Road Board | 1916 |
| Seagrott | George | Youanmi | Ford 19 H.P. | BR ● 9 | Black Range Road Board | 1922-23 |
| Seagrott | George | Sandstone | Ford | BR ● 11 | Black Range Road Board | 1923-24 |
| Seale | F. H. | Katanning | Ford 20 H.P. | KA 23 | Katanning Road Board | 1916 |
| Seale | F. J. | Peninsula Road, Maylands | Ford | 9178 | Metro Private Car | 1925-26 |
| Seale | F. J. | Johnston Road, Maylands | Ford | 1159 | Metro Private Car | 1926-27 |
| Seale | F. J. | Johnston Road, Maylands | Ford | 1734 | Metro Private Car | 1927-28 |
| Seale | Fred. | 73 Chatsford Road, Perth | Indian | 81 | Metro Motorcycle | 1922-23 |
| Seale | H. E. | 207 Hammesley Road, Subiaco | Dodge | 5270 | Metro Private Car | 1926-27 |
| Seale | R. W. | 73 Chatsworth Road, Highgate | Chevrolet | 4650 | Metro Private Car | 1926-27 |
| Seales | A. C. | Kalgoorlie Hotel, Perth | Dodge | 3011 | Metro Private Car | 1924-25 |
| Seales | Albert C. | Kalgoorlie Hotel, Perth | Dodge car | 3011 | Metro Vehicle for Hire | 1922-23 |
| Sealey | W. J. | - | Chevrolet | 8064 | Metro Private Car | 1925-26 |
| Sealey | W. J. | 69 Esplanade South Perth | Chevrolet | 8064 | Metro Private Car | 1926-27 |
| Sealy | W. J. | 25 Woodsome Street, Mount Lawley | Chevrolet | 8064 | Metro Private Car | 1927-28 |
| Seaman | A. E. | York | Overland | Y ● 35 | York Road Board | 1922-23 |
| Seaman | A. E. | Quairading | Ford Truck | Q ● 160 | Quairading Road Board | 1926-27 |
| Seaman | A. E. | Quairading | Mason Truck | Q ● 175 | Quairading Road Board | 1926-27 |
| Seaman | A. E. | Quairading | Ford Truck | Q ● 160 | Quairading Road Board | 1927-28 |
| Seaman | J. | 95 Newcastle Street, Perth | Ford Wagon | 11300 | Metro Private Car | 1926-27 |
| Seaman | J. A. | Mabbelling | Ford | Y ● 67 | York Road Board | 1923-24 |
| Seaman | J. A. | Greenhills | Ford | Y ● 67 | York Road Board | 1924-25 |
