| Ahern | D. | - | Chevrolet | CU ● 139 | Upper Chapman Road Board | 1926-27 |
| Ahern | Denis | - | Chevrolet Truck | CU ● 139 | Upper Chapman Road Board | 1927-28 |
| Ahern | H. | - | Overland | CU ● 43 | Upper Chapman Road Board | 1925-26 |
| Ahern | J. | Walkaway | Dodge | GH ● 53 | Greenough Road Board | 1925-26 |
| Ahern | J. | Walkaway | Dodge | GH ● 53 | Greenough Road Board | 1926-27 |
| Ahern | J. | Walkaway | Dodge | GH ● 53 | Greenough Road Board | 1927-28 |
| Ahern | T. | 7 Harry Street, Cottesloe | Buick | 5544 | Metro Private Car | 1924-25 |
| Ahern | T. | 7 Harry Street, Cottesloe | Buick | 5544 | Metro Private Car | 1925-26 |
| Ahern | T. | 7 Harry Street, Cottesloe | Buick | 5544 | Metro Private Car | 1926-27 |
| Ahern Ltd | - | Hay Street, Perth | Ford Wagon H.P | 1485 | Metro Private Car | 1922-23 |
| Aherne | W. P. | Wyndham | Ford | WY ● 12 | Wyndham Road Board | 1925-26 |
| Aherne | W. P. | Wyndham | Ford | WY ● 12 | Wyndham Road Board | 1926-27 |
| Aherne | W. P. | Wyndham | Ford | WY ● 12 | Wyndham Road Board | 1927-28 |
| Ahernes Ltd | - | Hay Street, Perth | Ford Wagon | 2479 | Metro Private Car | 1927-28 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 2479 | Metro Private Car | 1923-24 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 4437 | Metro Private Car | 1923-24 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 2479 | Metro Private Car | 1924-25 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 4437 | Metro Private Car | 1924-25 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 2479 | Metro Private Car | 1925-26 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 4437 | Metro Private Car | 1925-26 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 4437 | Metro Private Car | 1926-27 |
| Aherns Ltd | - | Perth | Ford Wagon | 2479 | Metro Private Car | 1926-27 |
| Aherns Ltd | - | Hay Street, Perth | Overland Wagon | 5297 | Metro Private Car | 1926-27 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 91 | Metro Private Car | 1927-28 |
| Aherns Ltd | - | Hay Street, Perth | Ford Wagon | 4437 | Metro Private Car | 1927-28 |
| Aherns Ltd | - | Hay Street, Perth | Overland Wagon | 5297 | Metro Private Car | 1927-28 |
| Ahrnes | Carl | Wickepin | Ford Truck | WK ● 140 | Wickepin Road Board | 1925-26 |
| Ahrnes | Carl | Wickepin | Ford Truck | WK ● 140 | Wickepin Road Board | 1926-27 |
| Ahrnes | Carl | Wickepin | Ford Truck | WK ● 140 | Wickepin Road Board | 1927-28 |
| Aiken | Robert B. | Latham | Chevrolet Truck | PM ● 153 | Perenjori-Morawa Road Board | 1927-28 |
| Aiken | W. S. | Balkuling | Ford 20 H.P. | BE ● 51 | Beverley Road Board | 1922-23 |
| Aiken | W. S. | Balkuling | Ford 20 H.P. | BE ● 51 | Beverley Road Board | 1923-24 |
| Aiken | W. S. | Balkuling | Overland | BE ● 51 | Beverley Road Board | 1924-25 |
| Aiken | W. S. | East Beverley | Overland | BE ● 51 | Beverley Road Board | 1925-26 |
| Aiken | W. S. | East Beverley | Overland | BE ● 51 | Beverley Road Board | 1926-27 |
| Aiken | W. S. | East Beverley | Overland | BE ● 51 | Beverley Road Board | 1927-28 |
| Ainger | W. | 60 Fremantle Road, Victoria Park | Ford Wagon | 7977 | Metro Private Car | 1925-26 |
| Ainsworth | N. H | Williams | Chevrolet | WL ● 73 | Williams Road Board | 1926-27 |
| Ainsworth | N. H. | Williams | Chevrolet | WL ● 73 | Williams Road Board | 1927-28 |
| Ainsworth | R. | Koorda | Chevrolet | WM ● 126 | Wyalkatchem Road Board | 1925-26 |
| Ainsworth | R. | Koorda | Chevrolet | WM ● 126 | Wyalkatchem Road Board | 1926-27 |
| Ainsworth | R. | Koorda | Chevrolet | WM ● 126 | Wyalkatchem Road Board | 1927-28 |
| Airey | J. | Nullagine | Chevrolet | NU ● 21 | Nullagine Road Board | 1927-28 |
| Airways Ltd | - | Dalgety Geraldton | Ford | GN 33 | Geraldton Municipality | 1922-23 |
| Airways Ltd | - | c/o Dalgety, Geraldton | Ford | GN ● 33 | Geraldton Municipality | 1923-24 |
| Airways Ltd | - | A.M.P. Buildings Perth | Essex | 322 | Metro Private Car | 1926-27 |
| Airy | Ettie M. | 112 Lincoln Street | Maxwell 15 H.P. | P 104 | Perth Municipality | 1917-18 |
| Airy | Ettie M. | 112 Lincoln Street | Maxwell 20 H.P. | P 104 | Perth Municipality | 1919 |
| Airy | R. | 41 Aberdeen Street, Perth | Citroen | 8370 | Metro Private Car | 1926-27 |
| Airy | R. | 41 Aberdeen Street, Perth | Citroen | 8370 | Metro Private Car | 1927-28 |
