| Thomas | A. J. | Mullewa | Chevrolet | MW ● 29 | Mullewa Road Board | 1925-26 |
| Thomas | A. J. | Mullewa | Chevrolet | MW ● 29 | Mullewa Road Board | 1926-27 |
| Thomas | A. J. | Mullewa | Chevrolet | MW ● 29 | Mullewa Road Board | 1927-28 |
| Thomas | A. J. | Wanneroo | Chevrolet Wagon | WN ● 9 | Wanneroo Road Board | 1927-28 |
| Thomas | A. L. | Kirup | Essex | BN ● 23 | Balingup Road Board | 1924-25 |
| Thomas | A. L. | Williams | Essex | WL ● 59 | Williams Road Board | 1925-26 |
| Thomas | A. L. | Nungarin | Essex | NA ● 165 | Nungarin Road Board | 1927-28 |
| Thomas | A. P. | Wydgee Station | Ford 20 H.P. | YA ● 15 | Yalgoo Road Board | 1923-24 |
| Thomas | A. T. | - | Maxwell | BE ● 67 | Beverley Road Board | 1924-25 |
| Thomas | A. T. | Beverley | Maxwell | BE ● 67 | Beverley Road Board | 1925-26 |
| Thomas | A. T. | Beverley | Maxwell | BE ● 67 | Beverley Road Board | 1926-27 |
| Thomas | A. T. | - | Maxwell | BE ● 67 | Beverley Road Board | 1927-28 |
| Thomas | A. V. | Donnybrook | Ford Truck | PE ● 10 | Preston Road Board | 1925-26 |
| Thomas | A. V. | Donnybrook | Ford | PE ● 106 | Preston Road Board | 1925-26 |
| Thomas | A. V. | Donnybrook | Ford Truck | PE ● 10 | Preston Road Board | 1926-27 |
| Thomas | A. V. | Donnybrook | Ford | PE ● 106 | Preston Road Board | 1926-27 |
| Thomas | A. V. | Donnybrook | Ford | PE ● 106 | Preston Road Board | 1927-28 |
| Thomas | A. V. | Donnybrook | Ford Truck | PE ● 10 | Preston Road Board | 1927-28 |
| Thomas | A. W. | Koorda | Chevrolet | WM ● 26 | Wyalkatchem Road Board | 1923-24 |
| Thomas | A. W. | Koorda | Chevrolet | WM ● 26 | Wyalkatchem Road Board | 1924-25 |
| Thomas | A. W. | Koorda | Chevrolet | WM ● 26 | Wyalkatchem Road Board | 1925-26 |
| Thomas | A. W. | Koorda | Chrysler | WM ● 26 | Wyalkatchem Road Board | 1926-27 |
| Thomas | A. W. | Koorda | Chrysler | WM ● 26 | Wyalkatchem Road Board | 1927-28 |
| Thomas | Albert J. | Wanneroo | Ford Truck | WN ● 9 | Wanneroo Road Board | 1924-25 |
| Thomas | B. & C. | 32 South Terrace, Fremantle | Ford Truck | 10138 | Metro Hire or Trade | 1926-27 |
| Thomas | C. | Three Springs | Essex | CA ● 17 | Carnamah Road Board | 1924-25 |
| Thomas | C. | Nannup | Ford Truck | BL ● 29 | Lower Blackwood Road Board | 1925-26 |
| Thomas | C. | Meriwa Street, Nedlands | Studebaker | 8485 | Metro Private Car | 1925-26 |
| Thomas | C. | Harold Street, Bayswater | Chevrolet Wagon | 8665 | Metro Private Car | 1925-26 |
| Thomas | C. | 53 William Street, Nedlands | Ford | 11818 | Metro Private Car | 1926-27 |
| Thomas | C. | Harold Street, Belmont | Chevrolet | 8665 | Metro Private Car | 1926-27 |
| Thomas | C. | Harold Street, Belmont | Chevrolet Wagon | 8665 | Metro Private Car | 1927-28 |
| Thomas | C. | 28 Carnarvon Street, Victoria Park | Ford | 11818 | Metro Private Car | 1927-28 |
| Thomas | C. C. | 99 South Street, Fremantle | Overland | 12213 | Metro Private Car | 1926-27 |
| Thomas | C. F. | Three Springs | Maxwell | CA ● 17 | Carnamah Road Board | 1926-27 |
| Thomas | C. F. | Three Springs | Maxwell | CA ● 17 | Carnamah Road Board | 1927-28 |
| Thomas | C. J. | Venn Street, Collie | Overland | CM 38 | Collie Municipality | 1925-26 |
| Thomas | C. W. | 42 Oroya Street, Boulder | Chevrolet | B 37 | Boulder Municipality | 1927-28 |
| Thomas | Catherine P | 3 Alma Road, Mount Lawley | Rugby | 8635 | Metro Private Car | 1927-28 |
| Thomas | D. | Albany | Ford 20 H.P. | A 72 | Albany Municipality | 1915 |
| 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 |
