| Trenberth | Mrs E. | 197 Park Street, Subiaco | Ford | 2538 | Metro Private Car | 1924-25 |
| Trenberth | Mrs E. | 197 Park Street, Subiaco | Ford | 2538 | Metro Private Car | 1925-26 |
| Trendweth | H. | Economic Stores, Perth | Buick | 489 | Metro Private Car | 1927-28 |
| Trenorden | J. W. | Wickepin | Ford 20 H.P. | RE ● 3 | Roe Road Board | 1922-23 |
| Trenorden | J. W. | 86 Gate via Wickepin | Ford 20 H.P. | RE ● 3 | Roe Road Board | 1923-24 |
| Trenorden | J. W. | 86-Gate via Wickepin | Ford Truck | RE ● 75 | Roe Road Board | 1925-26 |
| Trenorden | J. W. | 86-Gate via Wickepin | Ford | RE ● 3 | Roe Road Board | 1925-26 |
| Trenorden | J. W. | Wickepin | Dodge | WK ● 185 | Wickepin Road Board | 1926-27 |
| Trenorden | R. B. | Yelbeni | Dodge | KTY ● 77 | Kununoppin-Trayning Road Board | 1925-26 |
| Trenorden | R. B. | Yelbeni | Graham Truck | KTY ● 77 | Kununoppin-Trayning Road Board | 1926-27 |
| Trenoren | R. B. | Yelbeni | Graham Truck | KTY ● 77 | Kununoppin-Trayning Road Board | 1927-28 |
| Trenoweth | A. C. | 12 Edwards Street, Nedlands | Chevrolet | 4214 | Metro Private Car | 1924-25 |
| Trenoweth | A. C. | Edward Street, Nedlands | Chevrolet | 4214 | Metro Private Car | 1925-26 |
| Trenoweth | A. C. | 12 Edward Street, Nedlands | Chevrolet Truck | 14437 | Metro Private Car | 1927-28 |
| Trenoweth | A. C. | 12 Edward Street, Nedlands | Essex | 13246 | Metro Private Car | 1927-28 |
| Trenoweth | A. E. | 12 Edward Street, Nedlands | Essex | 13245 | Metro Private Car | 1926-27 |
| Trenoweth | H. S. | Economic Stores, Perth | Buick | 489 | Metro Private Car | 1926-27 |
| Trenville | T. | 347 Hannan Street, Kalgoorlie | Sunbeam | KMC ● 80 | Kalgoorlie Municipality | 1923-24 |
| Trenville | T. | 347 Hannan Street | Sunbeam | KMC 80 | Kalgoorlie Municipality | 1924-25 |
| Trenwith | J. | Hannan Street | Reo | KMC 188 | Kalgoorlie Municipal Council | 1925-26 |
| Trenwith | T. | 30 Keightley Road, Subiaco | Buick 18-20 H.P. | P 292 | Perth Municipality | 1916 |
| Trenwith | T. | 278 Newcastle Street | De Lage 15 H.P. | P 191 | Perth Municipality | 1919 |
| Trenwith | T. | 278 Newcastle Street | Buick 18-20 H.P. | P 292 | Perth Municipality | 1919 |
| Trenwith | T. | Post Office Kalgoorlie | Delarge | KMC 73 | Kalgoorlie Municipality | 1924-25 |
| Trenwith | T. | Post Office | De Lage | KMC 73 | Kalgoorlie Municipal Council | 1925-26 |
| Trenwith | T. | Post Office | Sunbeam | KMC 80 | Kalgoorlie Municipal Council | 1925-26 |
| Trenwith | T. | Post Office | De Lage | KMC 73 | Kalgoorlie Municipal Council | 1926-27 |
| Trenwith | T. | Post Office | De Lage | KMC 73 | Kalgoorlie Municipal Council | 1927-28 |
| Trenwith | Thomas | P.O Kalgoorlie | Delarge | KMC ● 73 | Kalgoorlie Municipality | 1923-24 |
| Trenwith | Thos. P. O. | P.O.Kalgoorlie | Delarge for Trade or Hire | KMC 73 | Kalgoorlie Municipal Council | 1922-23 |
| Tresidder | A. J. | Northampton | Chevrolet | NR ● 41 | Northampton Road Board | 1927-28 |
| Tresidder | W. H. | Perth | Indian 7 H.P. Motorcycle | P 891 | Perth Municipality | 1917-18 |
| Tresidder | W. H. | Education Department | Indian 7-9 H.P. | P 891 | Perth Municipality | 1919 |
| Tresize | S. | Jarnadup | Ford | WA ● 35 | Manjimup Road Board | 1925-26 |
| Tresize | S. | Jarnadup | Chevrolet | WA ● 61 | Manjimup Road Board | 1925-26 |
| Tresize | S. | Jarnadup | Ford | WA ● 35 | Manjimup Road Board | 1926-27 |
| Tresize | S. | Jarnadup | Chevrolet | WA ● 61 | Manjimup Road Board | 1926-27 |
| Tresize | S. | Jarnadup | Chevrolet | WA ● 61 | Manjimup Road Board | 1927-28 |
| Tresize | Simon | Jarnadup | Ford | WA ● 35 | Warren Road Board | 1924-25 |
| Tresize | Simon | Manjimup | Chevrolet | WA ● 61 | Warren Road Board | 1924-25 |
| Trestrail | A. N. | 144 Eighth Avenue, Maylands | Buick | 6279 | Metro Private Car | 1924-25 |
| Trestrail | A. N. | 144 EIghth Avenue, Maylands | Buick | 6279 | Metro Private Car | 1925-26 |
| Trestrail | A. V. | Johnston Street, Geraldton | Buick | GN ● 52 | Geraldton Municipality | 1923-24 |
| Trestrail | J. | Kondinin | Bean Truck | KN ● 93 | Kondinin Road Board | 1927-28 |
| Tretheway | S. | Broad Arrow | Ford Truck | K ● 7 | Kalgoorlie Road Board | 1924-25 |
| Tretheway | S. | Ora Banda | Ford Truck | K ● 108 | Kalgoorlie Road Board | 1926-27 |
| Tretheway | S. | Ora Banda | Ford Truck - Hire | K ● 7 | Kalgoorlie Road Board | 1926-27 |
| Tretheway | S. | Ora Banda | Ford Truck | K ● 108 | Kalgoorlie Road Board | 1927-28 |
| Trethewey | S. | Ora Banda | Studebaker 30 H.P. | BA 10 | Broad Arrow Road Board | 1916 |
| Trethowan | Dr | Saint George's Terrace, Perth | Dodge | 2498 | Metro Private Car | 1922-23 |
