| Sears | P. B. | 51 Broome Street, Cottesloe | Buick | 8467 | Metro Private Car | 1926-27 |
| Sears | P. B. | 51 Broome Street, Cottesloe | Buick | 8467 | Metro Private Car | 1927-28 |
| Seaton | Mrs I. | 44 Highway Nedlands | Fiat | 11117 | Metro Private Car | 1926-27 |
| Seaton | Mrs I. | 362 Fitzgerald Street, Perth | Fiat | 11117 | Metro Private Car | 1927-28 |
| Sebbage | Mrs F. | Sussex Street, Victoria Park | Ford | 11904 | Metro Private Car | 1927-28 |
| Sebo | Miss J. | 9 napier Street, Claremont | Citroen | 13447 | Metro Private Car | 1926-27 |
| Sebo | Miss J. | 9 Napier Street, Claremont | Citroen | 13447 | Metro Private Car | 1927-28 |
| Secker | Constance | Cnr. Raglan Road & Oxford Street, N. Perth | Ford | 6774 | Metro Private Car | 1925-26 |
| Secker | Constance | Cnr. Raglan Road & Oxford Street, North Perth | Ford | 6774 | Metro Private Car | 1926-27 |
| Secker | Constance | Cnr. Raglan Road and Norfolk Street, North Perth | Ford | 6774 | Metro Private Car | 1927-28 |
| Secker | H. | 19 Norfolk Street, North Perth | Rugby | 6596 | Metro Private Car | 1925-26 |
| Secker | H. | 19 Norfolk Street, North Perth | Rugby | 6596 | Metro Private Car | 1926-27 |
| Secker | H. | 19 Norfolk Street, North Perth | Rugby | 6596 | Metro Private Car | 1927-28 |
| Secombbe | C. F. | Kellerberrin | Rugby | KE ● 171 | Kellerberrin Road Board | 1926-27 |
| Secombe | C. F. | Kellerberrin | Rugby | KE ● 171 | Kellerberrin Road Board | 1925-26 |
| Secombe | C. F. | Kellerberrin | Rugby | KE ● 171 | Kellerberrin Road Board | 1927-28 |
| Secombe | V. C. | Military Barracks, Perth | Dodge | 9905 | Metro Private Car | 1926-27 |
| Secombe & Co | - | Broome | Ford Wagon | BM ● 53 | Broome Road Board | 1925-26 |
| Secombe & Co | - | Broome | Ford Wagon | BM ● 53 | Broome Road Board | 1926-27 |
| Secretary Trades Hall | - | Perth | Chevrolet | 13888 | Metro Private Car | 1926-27 |
| Secrett | A. J. | - | Triumph 3½ H.P. Motorcycle | DR ● 6 | Darling Range Road Board | 1917-18 |
| Secrett | A. J. | - | Triumph 3½ H.P. Motorcycle | DR ● 6 | Darling Range Road Board | 1919 |
| Secrett | A. J. | Bunbury | Chevrolet | BY 114 | Bunbury Municipality | 1925-26 |
| Secrett | A. J. | Kalamunda | Chevrolet | DR ● 100 | Darling Range Road Board | 1926-27 |
| Secrett | A. J. | Kalamunda | Chevrolet | DR ● 100 | Darling Range Road Board | 1927-28 |
| Sedden | H. | Kalgoorlie | E.M.F. 20 H.P. | KMC 33 | Kalgoorlie Municipality | 1916 |
| Seddon | J. | Narrogin | Chevrolet | NO ● 107 | Narrogin Road Board | 1926-27 |
| Seddon | J. | Narrogin | Chevrolet | NO ● 107 | Narrogin Road Board | 1927-28 |
| Sedgeley | F. E. | 29 Nicholson Road, Subiaco | Ford | 535 | Metro Private Car | 1922-23 |
| Sedgeley | F. E. | 39 Nicholson Road, Subiaco | Ford | 535 | Metro Private Car | 1923-24 |
| Sedgeley | F. E. | 39 Nicholson Road, Subiaco | Crossley | 535 | Metro Private Car | 1924-25 |
| Sedgeley | F. E. | 39 Nicholson Road, Subiaco | Crossley | 535 | Metro Private Car | 1925-26 |
| Sedgeley | F. E. | 39 Nicholson Road, Subiaco | Crossley | 535 | Metro Private Car | 1926-27 |
| Sedgeley | F. E. | 429 Rokeby Road, Subiaco | Cressley | 535 | Metro Private Car | 1927-28 |
| Sedgely | Roy G. | 39 Nicholson Road, Subiaco | Minerva | 1167 | Metro Motorcycle | 1922-23 |
| Sedgewick Ltd | - | 416 Murray Street | Ford 20 H.P. | P 157 | Perth Municipality | 1917-18 |
| Sedgewicks Ltd | - | Murray Street, Perth | Ford Wagon | 2708 | Metro Private Car | 1925-26 |
| Sedgley | F. E. | Cr. Nicholson Road and Arthur Street | Car | S 35 | Subiaco Municipality | 1916 |
| Sedgley | F. E. | 39 Nicholson Road | Car | S 35 | Subiaco Municipality | 1917-18 |
| Sedgley | F. E. | 39 Nicholson Road | - | S 35 | Subiaco Municipality | 1919 |
| Sedgley | F. E. | 39 Nichols Road, Subiaco | Ford Wagon | 9992 | Metro Private Car | 1926-27 |
| Sedgley | F. E. | 429 Rokeby Road, Subiaco | Ford Wagon | 9992 | Metro Private Car | 1927-28 |
| Sedgley | F. E. | 429 Rokeby Road, Subiaco | Citroen | 5300 | Metro Private Car | 1927-28 |
| Sedgley | F. W. | 39 Nicholson Road, Subiaco | Ford Wagon | 5842 | Metro Private Car | 1924-25 |
| Sedgley | F. W. | 39 Nicholson Road, Subiaco | Ford Wagon | 5842 | Metro Private Car | 1925-26 |
| Sedgman & Lee | - | 57 Bronte Street, East Perth | Ford | 2245 | Metro Private Car | 1927-28 |
| Sedgwick | D. | 17 Havelock Street, West Perth | Oldsmobile | 8723 | Metro Private Car | 1925-26 |
| Sedgwick | Douglas | 7 Havelock Street, Perth | Ford | 157 | Metro Private Car | 1923-24 |
| Sedgwick | Douglas | 7 Havelock Street, West Perth | Ford | 157 | Metro Private Car | 1926-27 |
| Sedgwick | Dr Marcus | 7 Havelock Street, Perth | Oldsmobile | 8723 | Metro Private Car | 1927-28 |
