| Simpson | T. | - | Ford | CU ● 96 | Upper Chapman Road Board | 1927-28 |
| Simpson | T. M. | 90 Mabel Street | Triumph 3½ H.P. Motorcycle | P 716 | Perth Municipality | 1919 |
| Simpson | T. W. | 90 Mabel Street, North Perth | Rugby | 5373 | Metro Private Car | 1924-25 |
| Simpson | T. W. | 11 Conroy Street, Maylands | Columbia | 8094 | Metro Private Car | 1926-27 |
| Simpson | T. W. | 11 Conroy Street, Maylands | Columbia | 8094 | Metro Private Car | 1927-28 |
| Simpson | Violet D. | Savoy Hotel | Auto Ped 1 H.P. | P 1311 | Perth Municipality | 1919 |
| Simpson & Marshall | - | Wubin | Dodge | DL ● 76 | Dalwallinu Road Board | 1925-26 |
| Simpson & Marshall | - | Wubin | Dodge | DL ● 76 | Dalwallinu Road Board | 1926-27 |
| Simpson Union Brewery | A. G. | Palmerston Street, Perth | Overland | 14089 | Metro Private Car | 1927-28 |
| Sims | - | - | Graham Truck | CU ● 75 | Upper Chapman Road Board | 1926-27 |
| Sims | A. | Cnr. 1st Avenue & John Street, Mount Lawley | Hudson 30 H.P. | P ● 713 | Perth Road Board | 1917-18 |
| Sims | D. | Quairading | Ford Truck | Q ● 153 | Quairading Road Board | 1925-26 |
| Sims | D. | Quairading | Ford Truck | Q ● 153 | Quairading Road Board | 1926-27 |
| Sims | E J. | Cnr. Edward & Archdeacon Street, Nedlands | Essex | 8862 | Metro Private Car | 1926-27 |
| Sims | E. | cr Osborne & Prowse streets, West Perth | Dodge | 940 | Metro Private Car | 1924-25 |
| Sims | E. | 102 Lincoln Street, Perth | Dodge | 940 | Metro Private Car | 1925-26 |
| Sims | E. | 102 Lincoln Street, Perth | Dodge | 940 | Metro Private Car | 1926-27 |
| Sims | E. | - | Ford | CU ● 20 | Upper Chapman Road Board | 1926-27 |
| Sims | E. | - | Ford | CU ● 20 | Upper Chapman Road Board | 1927-28 |
| Sims | E. J. | Northampton | Studebaker | NR ● 115 | Northampton Road Board | 1925-26 |
| Sims | E. J. | Northampton | Studebaker | NR ● 115 | Northampton Road Board | 1926-27 |
| Sims | E. J. | Cnr. Edward & Archdeacon Street, Nedlands | Essex | 8862 | Metro Private Car | 1927-28 |
| Sims | E. J. | Northampton | Studebaker | NR ● 115 | Northampton Road Board | 1927-28 |
| Sims | F. | Mount Hardey | Ford | Y ● 19 | York Road Board | 1922-23 |
| Sims | F. | Mount Hardy | Ford | Y ● 19 | York Road Board | 1923-24 |
| Sims | F. | Mount Hardey | Ford | Y ● 19 | York Road Board | 1925-26 |
| Sims | F. | - | Overland | CU ● 73 | Upper Chapman Road Board | 1925-26 |
| Sims | F. | Mount Hardey | Ford | Y ● 19 | York Road Board | 1925-26 |
| Sims | F. | Mount Hardey | Ford | Y ● 19 | York Road Board | 1926-27 |
| Sims | F. | Mount Hardey | Ford | Y ● 19 | York Road Board | 1927-28 |
| Sims | F. C. | Mount Hardey | Ford | Y ● 19 | York Road Board | 1924-25 |
| Sims | F. G. | 21 Tate Street, South Perth | Citroen | 5737 | Metro Private Car | 1927-28 |
| Sims | Fred. | 230 Cambridge Street, West Leederville | Excelsior | 40 | Metro Motorcycle | 1922-23 |
| Sims | H. | Balkuling | Ford Truck | Y ● 114 | York Road Board | 1925-26 |
| Sims | H. | Balkuling | Ford Truck | Y ● 114 | York Road Board | 1926-27 |
| Sims | H. | Balkuling | Ford Truck | Y ● 114 | York Road Board | 1927-28 |
| Sims | H. A. | Popanyinning | Chevrolet | CN ● 63 | Cuballing Road Board | 1927-28 |
| Sims | H. E. | Beverley | Buick | BE ● 120 | Beverley Road Board | 1927-28 |
| Sims | H. M. | 338 Wellington Street, Perth | Ford | 3310 | Metropolitan Hire and Trade Cars | 1923-24 |
| Sims | H. O. | Beverley | Ford | BE ● 83 | Beverley Road Board | 1923-24 |
| Sims | H. O. | Beverley | Buick | BE ● 120 | Beverley Road Board | 1925-26 |
| Sims | H. O. | Beverley | Buick | BE ● 120 | Beverley Road Board | 1926-27 |
| Sims | Hugh | Beaufort Street | Itala 14 H.P. | P 506 | Perth Municipality | 1916 |
| Sims | John Geo. | 1 Nash Street, Perth | Ford wagon | 3310 | Metro Vehicle for Hire | 1922-23 |
| Sims | O. H. | Beverley | Ford 20 H.P. | BE ● 83 | Beverley Road Board | 1922-23 |
| Sims | P. R | Tinkurrin | Dodge | WK ● 25 | Wickepin Road Board | 1926-27 |
| Sims | P. R. | Tinkurrin | Dodge | WK ● 25 | Wickepin Road Board | 1927-28 |
| Sims | Percy | Yealering | Dodge | WK ● 40 | Wickepin Road Board | 1922-23 |
| Sims | Percy | Yearlering | Dodge | WK ● 40 | Wickepin Road Board | 1923-24 |
| Sims | S. | - | Graham Truck | CU ● 75 | Upper Chapman Road Board | 1927-28 |
