| Albert | N. M. | 9 Waterloo Crescent | Indian 7½ H.P. | P 1133 | Perth Municipality | 1919 |
| Albert | P. | c / o Fire Station, Geraldton | Volcan | GN ● 55 | Geraldton Municipality | 1923-24 |
| Albert & Hickey | - | Bay View Terrace, Perth | Grant | 343 | Metro Private Car | 1922-23 |
| Albert Power & Son | - | 81 Northwood Street, West Leederville. | Dodge | 4805 | Metro Private Car | 1924-25 |
| Albert Power & Son | - | 81 Northwood Street, West Leederville | Dodge | 4805 | Metro Private Car | 1925-26 |
| Albert Power & Son | - | 81 Northwood Street, West Leederville | Dodge | 4805 | Metro Private Car | 1926-27 |
| Albert Power & Son | - | 81 Northwood Street, W. Leederville | Dodge | 4805 | Metro Private Car | 1927-28 |
| Albert Power and Son. | - | 81 Northwood Street, West Leederville | Dodge | 4805 | Metro Private Car | 1923-24 |
| Alcock | A. U. | Perth | Talbot 20-30 H.P. | P 714 | Perth Municipality | 1916 |
| Alcock | W. | Court Hotel, Perth | Rugby | 8339 | Metro Private Car | 1926-27 |
| Alcock & Co | - | 890 Hay Street | Hupmobile 22½ H.P. Motorcycle | P 422 | Perth Municipality | 1917-18 |
| Alcoin | C. H. | Mumballup | Brockway Truck | PE ● 79 | Preston Road Board | 1927-28 |
| Alcom | C. H. | Mumballup | Buick | PE ● 32 | Preston Road Board | 1922-23 |
| Alcorn | C. | Mumballup | Brockway Truck | PE ● 77 | Preston Road Board | 1926-27 |
| Alcorn | C. A. | Denmark | Ford | DE ● 87 | Denmark Road Board | 1927-28 |
| Alcorn | C. H. | Mumballup | Buick | PE ● 32 | Preston Road Board | 1923-24 |
| Alcorn | C. H. | Mumballup | Buick | PE ● 32 | Preston Road Board | 1924-25 |
| Alcorn | C. H. | Mumballup | Buick | PE ● 32 | Preston Road Board | 1925-26 |
| Alcorn | C. H. | Mumballup | Buick | PE ● 32 | Preston Road Board | 1926-27 |
| Alcorn | C. H. | Mumballup | Chevrolet Truck | PE ● 133 | Preston Road Board | 1926-27 |
| Alcorn | G. | Mumballup | Brockway Truck | PE ● 77 | Preston Road Board | 1925-26 |
| Aldam | Thos. W. | U. B. A. Ltd, Saint George's Terrace | Douglas 2¾ H.P. Motorcycle | P 870 | Perth Municipality | 1916 |
| Alday | C. W. | Albany Road, Cannington | Rudge Multi 3½ H.P. Motorcycle | QP ● 3 | Queens Park Road Board | 1917-18 |
| Alday | C. W. | Albany Road, Cannington | Indian 7-9 H.P. | QP ● 3 | Queen's Park Road Board | 1919 |
| Alday | C. W. | Dangin | Ford | Q ● 213 | Quairading Road Board | 1927-28 |
| Alday | Chas. | Mackie Street | F. N. 2¼ H.P. Motorcycle | VP 36 | Victoria Park Municipality | 1916 |
| Aldcus | C. | 38 Cothilde Street, Mount Lawley | Ford | 5552 | Metro Private Car | 1925-26 |
| Aldenton | S. W. | C/o J. R. Clarkson Saint George's Terrace | Citroen | 9009 | Metro Private Car | 1925-26 |
| Alder | G. W. | Victoria Avenue | - | C 47 | Claremont Municipality | 1915 |
| Alderage | A. | 28 Marlborough Street, North Perth | - | 5303 | Metro Private Car | 1924-25 |
| Alderage | A. | 28 Marlbrough Street, North Perth | Ford | 5303 | Metro Private Car | 1925-26 |
| Alderman | L. | Denmark | Ford | DE ● 46 | Denmak Road Board | 1926-27 |
| Alderman | L. | Denmark | Chevrolet | DE ● 17 | Denmark Road Board | 1927-28 |
| Alderman | L. R. | Bruce Rock | Chevrolet | BK ● 32 | Bruce Rock Road Board | 1924-25 |
| Alderman | L. R. | Bruce Rock | Chevrolet | BK ● 32 | Bruce Rock Road Board | 1925-26 |
| Alderman | L. R. | Bruce Rock | Chevrolet | BK ● 32 | Bruce Rock Road Board | 1926-27 |
| Aldis | A. E. | Wagin | Essex | WN ● 30 | Wagin Municipality | 1926-27 |
| Aldis | A. E. | Wagin | Whippet | WN 101 | Wagin Municipality | 1927-28 |
| Aldona | Charles | 25 Alvan Street, Mount Lawley | Whippet | 14716 | Metro Private Car | 1927-28 |
| Aldons | C. | Mount Lawley | Pope 7 H.P. | ML 28 | Perth Road Board | 1915 |
| Aldons | C. | 25 Alvin Street, Mount Lawley | Ford | 5552 | Metro Private Car | 1926-27 |
| Aldons | Chas. | W.A. Office, Perth | Pope 7½ H.P. | P 357 | Perth Municipality | 1915 |
| Aldous | C. | 38 Clothilde Street, Mount Lawley | Ford | 5552 | Metro Private Car | 1924-25 |
| Aldous | Chas. | West Australian Office | Pope 7-9 H.P. | P 357 | Perth Municipality | 1916 |
| Aldred | D. V. | - | Chevrolet | N ● 129 | Northam Road Board | 1927-28 |
| Aldred | R. | Dukin | Buick | WM ● 68 | Wyalkatchem Road Board | 1924-25 |
| Aldred | R. | Dukin | Chevrolet | WM ● 68 | Wyalkatchem Road Board | 1925-26 |
| Aldred | R. | Dukin | Buick | WM ● 68 | Wyalkatchem Road Board | 1926-27 |
| Aldred | W. | Doonan Road | - | CL 1 | Claremont Road Board | 1916 |
| Aldum | E. W. | Williams | Ford | WL ● 111 | Williams Road Board | 1927-28 |
