| Thomas | D. | Albany | Ford 20 H.P. | A 72 | Albany Municipality | 1916 |
| Thomas | D. | Allanson | Studebaker | CO ● 103 | Collie Road Board | 1926-27 |
| Thomas | D. | Allanson | Studebaker | CO ● 103 | Collie Road Board | 1927-28 |
| Thomas | D. W. | 87 Leviathan Street, Boulder | Ford | B 60 | Boulder Municipality | 1925-26 |
| Thomas | D. W. | 85 Leviathan Street, Boulder | Ford | B60 | Boulder Municipality | 1925-26 |
| Thomas | David | Northampton | Chevrolet | NR ● 12 | Northampton Road Board | 1927-28 |
| Thomas | Dr F. | 203 Lake Street, Perth | Chevrolet | 4713 | Metro Private Car | 1924-25 |
| Thomas | Dr R. S. | Duke Street | Flat | N 219 | Northam Municipality | 1927-28 |
| Thomas | Dr T. | 230 Saint George's Terrace, Perth | Citroen | 11396 | Metro Private Car | 1926-27 |
| Thomas | Dr. F. S. | Mounts Bay Road, Perth | Chevrolet | 4713 | Metro Private Car | 1923-24 |
| Thomas | E. | Thomaston, Mount Barker | Studebaker 20 H.P. | PL ● 36 | Plantagenet Road Board | 1919 |
| Thomas | E. | Mount Barker | Studebaker | PL ● 36 | Plantagenet Road Board | 1922-23 |
| Thomas | E. | Mount Barker | Studebaker | PL ● 36 | Plantagenet Road Board | 1923-24 |
| Thomas | E. | Mount Barker | Studebaker | PL ● 36 | Plantagenet Road Board | 1924-25 |
| Thomas | E. | Carbarup | Studebaker | PL ● 36 | Plantagenet Road Board | 1925-26 |
| Thomas | E. | Carbarup | Studebaker | PL ● 36 | Plantagenet Road Board | 1926-27 |
| Thomas | Edward | Mount Barker | Chrysler | PL ● 36 | Plantagenet Road Board | 1927-28 |
| Thomas | Edward | Victoria Street, Cottesloe Beach | Standard | 363 | Metro Private Car | 1927-28 |
| Thomas | Ethel | P.O. West Leederville | Indian 7.9 H.P. Motorcycle | P 92 | Perth Municipality | 1917-18 |
| Thomas | F. | 54 1st Avenue, Mount Lawley | Clement-Talbot 20 H.P. | P ● 13 | Perth Road Board | 1917-18 |
| Thomas | F. | - | Talbot | P ● 13 | Perth Road Board | 1919 |
| Thomas | F. | Mount Magnet | Indian 7 H.P. Motorcycle | MA ● 9 | Mount Magnet Road Board | 1922-23 |
| Thomas | F. C. | 44 State Street, Victoria Park | Dodge | 4785 | Metro Private Car | 1923-24 |
| Thomas | F. C. | 44 State Street, Victoria Park | Dodge | 4785 | Metro Private Car | 1924-25 |
| Thomas | F. C. | 44 State Street, Victoria Park | Dodge | 7251 | Metro Private Car | 1925-26 |
| Thomas | F. C. | 44 Stote Street, Victoria Park | Dodge | 7251 | Metro Private Car | 1926-27 |
| Thomas | F. C. | Glyde Street, Cottesloe | Chevrolet | 15816 | Metro Private Car | 1927-28 |
| Thomas | F. Mrs | Victoria Avenue, Claremont | Citroen | 2336 | Metro Private Car | 1923-24 |
| Thomas | F. R. | Selborne Chambers, Howard Street | Essex | 1210 | Metro Private Car | 1922-23 |
| Thomas | F. R. | 128 Victoria Avenue, Claremont | Hudson | 8781 | Metro Private Car | 1925-26 |
| Thomas | F. R. | 128 Victoria Avenue, Claremont | Hudson | 8781 | Metro Private Car | 1926-27 |
| Thomas | F. R. | 128 Victoria Avenue, Claremont | Hudson | 8781 | Metro Private Car | 1927-28 |
| Thomas | Fred | Victoria Aveneu, Perth | Essex | 1210 | Metro Private Car | 1923-24 |
| Thomas | Fred | Victoria Avenue, Claremont | Essex Coach | 1210 | Metro Private Car | 1924-25 |
| Thomas | Fred | Victoria Avenue, Claremont | Essex Coach | 1210 | Metro Private Car | 1925-26 |
| Thomas | Fred | Victoria Avenue, Claremont | Essex Coach | 1210 | Metro Private Car | 1926-27 |
| Thomas | G. H. | Moonyoonooka | Dodge 23 H.P. | G ● 7 | Geraldton Road Board | 1922-23 |
| Thomas | G. L. | Rokeby Road, Subiaco | Fiat | 4633 | Metro Private Car | 1924-25 |
| Thomas | G. L. | Commercial Bank, Subiaco | Fiat | 4633 | Metro Private Car | 1925-26 |
| Thomas | G. L. | Commercial Bank, Subiaco | Fiat | 4633 | Metro Private Car | 1926-27 |
| Thomas | G. L. | Commercial Bank Subiaco | Fiat | 4633 | Metro Private Car | 1927-28 |
| Thomas | George | - | Chrysler | CU ● 184 | Upper Chapman Road Board | 1927-28 |
| Thomas | Goodwin L. | Rokeby Road, Subiaco | Fiat | 4633 | Metro Private Car | 1923-24 |
| Thomas | Gordon | 261 Murray Street, Perth | B.S.A. 3½ H.P. Motorcycle | P 261 | Perth Municipality | 1916 |
| Thomas | H. | 56 John Street, Fremantle | Overland Truck | 10103 | Metro Hire or Trade | 1925-26 |
| Thomas | H. | 94 Victoria Avenue, North Fremantle | Overland | 10103 | Metro Hire or Trade | 1926-27 |
| Thomas | H. | Mollerin | Overland Truck | WM ● 361 | Wyalkatchem Road Board | 1927-28 |
| Thomas | H. A. | 54 Cambridge Street, Leederville | Overland | 4671 | Metro Private Car | 1927-28 |
| Thomas | H. D. | Nungarin | Ford lorry | NA ● 17 | Nungarin Road Board | 1923-24 |
| Thomas | H. D. | Nungarin | Ford Lorry | NA ● 17 | Nungarin Road Board | 1924-25 |