| Tropical Traders Ltd | - | 9 James Street, Perth | Buick | 4632 | Metro Private Car | 1926-27 |
| Tropical Traders Ltd | - | 9 James Street, Perth | Buick | 4632 | Metro Private Car | 1927-28 |
| Trotman | A. H. | North Dandalup | Studebaker | MY ● 68 | Murray Road Board | 1923-24 |
| Trotman | C. S. | Collins Street, Kalgoorlie | Dodge | KMC 211 | Kalgoorlie Municipal Council | 1927-28 |
| Trotman | H. S. | 10 Duke Street, Subiaco | Chevrolet | 9898 | Metro Private Car | 1926-27 |
| Trotman | H. S. | 10 Duke Street, Subiaco | Whippet | 9898 | Metro Private Car | 1927-28 |
| Trots | C. | Irishtown | Chevrolet | N ● 124 | Northam Road Board | 1925-26 |
| Trott | C. | - | Chevrolet | N ● 124 | Northam Road Board | 1927-28 |
| Trott | J. A. | Collie | Chevrolet Truck | CM 211 | Collie Municipality | 1927-28 |
| Trott | John C. | Corrigin | Buick | CR ● 294 | Corrigin Road Board | 1927-28 |
| Trott | P. | Glen Forrest | Maxwell | GE ● 3 | Greenmount Road Board | 1924-25 |
| Trott | P. | Glen Forrest | Maxwell | 6976 | Metro Private Car | 1925-26 |
| Trott | P. | Glen Forrest | Maxwell | 6976 | Metro Private Car | 1926-27 |
| Trott | P. | Glen Forrest | Maxwell | 6976 | Metro Private Car | 1927-28 |
| Trott | Percy | Glenforrest | Maxwell | GE ● 9 | Greenmount Road Board | 1923-24 |
| Trott | W. D. | York Road, Greenmount | Buick Wagon | 8810 | Metro Private Car | 1926-27 |
| Trotter | A. L. | Carnamah | Chevrolet | CA ● 14 | Carnamah Road Board | 1924-25 |
| Trotter | A. L. | Carnamah | Chevrolet | CA ● 14 | Carnamah Road Board | 1925-26 |
| Trotter | A. L. | Carnamah | Chevrolet | CA ● 14 | Carnamah Road Board | 1926-27 |
| Trotter | A. L. | Carnamah | Trailer | CA ● 117 | Carnamah Road Board | 1926-27 |
| Trotter | A. L. | Carnamah | Morris Oxford | CA ● 14 | Carnamah Road Board | 1927-28 |
| Trotter | A. L. | Carnamah | Trailer | CA ● 117 | Carnamah Road Board | 1927-28 |
| Trotter | A. L. | Carnamah | Morris Truck | CA ● 226 | Carnamah Road Board | 1927-28 |
| Trotter | A. W. | Kulin | Oldsmobile | KU ● 12 | Kulin Road Board | 1926-27 |
| Trotter | A. W. | Kulin | Oldsmobile | KU ● 12 | Kulin Road Board | 1927-28 |
| Trotter | E. A. | Kulin | Oldsmobile | RE ● 43 | Roe Road Board | 1925-26 |
| Trotter | R. F. | Bunbury | Chevrolet | BY 172 | Bunbury Municipality | 1927-28 |
| Troubridge | A. M. | Lyllas Mill | Ford | CO ● 79 | Collie Road Board | 1927-28 |
| Trouchet | A. | Cnr. Barrack & Wellington streets | Dodge 20 H.P. | P 728 | Perth Municipality | 1917-18 |
| Trouchet | A. | 50 Cambridge Street | Ford 20 H.P. | P 1130 | Perth Municipality | 1919 |
| Trouchet | Alex | 93 Colin Street | Chevrolet 20 H.P. | P 728 | Perth Municipality | 1916 |
| Trouchet | H. | 50 Cambridge Street | Hupmobile 20 H.P. | P 48 | Perth Municipality | 1919 |
| Trouchet | Mrs H. | 17 Devonshire Milligan Street | Hupmobile | 6879 | Metro Private Car | 1924-25 |
| Trouchet | Mrs H. | 17 Devonshire Flats | Hupmobile | 6869 | Metro Private Car | 1925-26 |
| Trouchet | Mrs H. | 17 Devonshire Flats | Hupmobile | 6869 | Metro Private Car | 1926-27 |
| Trouchet | Mrs H. | 21 QueensCrescent, Mount Lawley | Hupmobile | 6869 | Metro Private Car | 1927-28 |
| Troughton | Fred | 86 2nd Avenue, Inglewood | Ford | 1010 | Metro Private Car | 1923-24 |
| Troup | Dr G. | 414 Rokeby Road, Subiaco | Morris Cowley | 6510 | Metro Private Car | 1924-25 |
| Troup | Dr G. R | 414 Rokeby Road, Subiaco | Austin | 5128 | Metro Private Car | 1927-28 |
| Troup | Dr G. R. | 404 Rokeby Road, subiaco | Essex | 8369 | Metro Private Car | 1925-26 |
| Troup | Dr G. R. | 414 Rokeby Road, Subiaco | Austin | 5128 | Metro Private Car | 1926-27 |
| Troup | Dr G. R. | 404 Rokeby Road, Subiaco | Essex | 8369 | Metro Private Car | 1926-27 |
| Troup | Dr Gilbert | Cnr. Nicholson & Rokeby Roads | Buick | 12737 | Metro Private Car | 1927-28 |
| Trowbridge | A. L. | - | - | - | Preston Road Board | 1915 |
| Trower | G. | Broome | Ford | BM ● 36 | Broome Road Board | 1924-25 |
| Trower | G. | Broome | Ford | BM ● 36 | Broome Road Board | 1925-26 |
| Truarn | A. E. | Pindalup | Ford | MR ● 14 | Marradong Road Board | 1924-25 |
| Truarn | A. E. | Pindalup | Ford Van | MR ● 11 | Marradong Road Board | 1925-26 |
| Truarn | A. E. | Pindalup | Ford | MR ● 14 | Marradong Road Board | 1925-26 |
| Truarn | A. E. | Pindalup | Dodge | MR ● 42 | Marradong Road Board | 1925-26 |
