| A.T.W. Union Australian Textile Workers Union | - | Stirling Street, Perth | Essex | 11636 | Metro Private Car | 1927-28 |
| Abbott | E. M. | McKenzie Street, Wembley Park | Overland | 8680 | Metro Private Car | 1927-28 |
| Abbott | J. J. | Tinkurrin | Ford | WK ● 178 | Wickepin Road Board | 1926-27 |
| Abbott | J. J. | Tinkurrin | Ford | WK ● 178 | Wickepin Road Board | 1927-28 |
| Abell | H. | Albany | Studebaker | A 80 | Municipality of Albany | 1925-26 |
| Aberdeen | Dr K. | Duke Street, | Case | N 89 | Northam Municipality | 1926-27 |
| Aberdeen | Dr K. | Duke Street | Case | N 89 | Northam Municipality | 1927-28 |
| Aberdeen | Dr K. G. | Duke Street | Essex | N 89 | Northam Municipality | 1925-26 |
| Abernethy | John | Byford | Pontiac | A-K ● 157 | Armadale-Kelmscott Road Board | 1927-28 |
| Ackinson | H. B. | Armadale | Ford Ton Truck | A-K ● 35 | Armadale-Kelmscott Road Board | 1922-23 |
| Ackinson | H. B. | Armadale | Ford Ton Truck | A-K ● 35 | Armadale-Kelmscott Road Board | 1923-24 |
| Adair Clara | - | Woolundra | Chevrolet Truck | KE ● 137 | Kellerberrin Road Board | 1925-26 |
| Adams | C. N. | Parkers Road | Ford Truck | YL ● 5 | Yilgarn Road Board | 1926-27 |
| Adams | J. C. | Mount Barker | Dodge | PL ● 43 | Plantagenet Road Board | 1927-28 |
| Adams | J. H | Wickepin | Dodge | WK ● 101 | Wickepin Road Board | 1926-27 |
| Adams | J. H. | Wickepin | Ford 20 H.P. | WK 4 | Wickepin Road Board | 1916 |
| Adams | J. H. | Wickepin | Ford 20 H.P. | WK ● 2 | Wickepin Road Board | 1917-18 |
| Adams | J. H. | Wickepin | Dodge | WK ● 2 | Wickepin Road Board | 1923-24 |
| Adams | J. H. | Wickepin | Ford | WK ● 42 | Wickepin Road Board | 1923-24 |
| Adams | J. H. | Wickepin | Dodge | WK ● 2 | Wickepin Road Board | 1924-25 |
| Adams | J. H. | Wickepin | Dodge | WK ● 65 | Wickepin Road Board | 1924-25 |
| Adams | J. H. | Wickepin | Dodge | WK ● 101 | Wickepin Road Board | 1924-25 |
| Adams | J. H. | Wickepin | Dodge | WK ● 101 | Wickepin Road Board | 1925-26 |
| Adams | J. H. | Wickepin | Dodge | RE ● 66 | Roe Road Board | 1925-26 |
| Adams | J. H. | Wickepin | Dodge | KU ● 93 | Kulin Road Board | 1927-28 |
| Adams | J. H. | Wickepin | Dodge | WK ● 101 | Wickepin Road Board | 1927-28 |
| Adams | John H. M. | Wickepin | Ford 20 H.P. | WKP 4 | Wickepin Road Board | 1915 |
| Adams | Mrs D. H. | Cookernup | Chevrolet | H ● 42 | Harvey Road Board | 1927-28 |
| Adams | Mrs M. | Range View Kenwick | Ford | 14456 | Metro Private Car | 1927-28 |
| Adams | W. & Co. Ltd. | 9 Queen Street | Studebaker 15-20 H.P. | P 684 | Perth Municipality | 1916 |
| Adams & Co | J. H. | Wickepin | Dodge | WK ● 2 | Wickepin Road Board | 1925-26 |
| Adams & Co | J. H. | Wickepin | Dodge | WK ● 2 | Wickepin Road Board | 1927-28 |
| Adams & Co | Wm. | King Street | Studebaker | P 684 | Perth Municipality | 1917-18 |
| Adams & Co | Wm. | King Street | Studebaker 25-30 H.P. | P 684 | Perth Municipality | 1919 |
| Adams & Co Ltd | Wm. | 9 Queen Street | Studebaker 15-20 H.P. | P 684 | Perth Municipality | 1915 |
| Adams &Co | J. H | Wickepin | Dodge | WK ● 2 | Wickepin Road Board | 1926-27 |
| Adamson | J. A. | Lake Grace | Dort | LG ● 18 | Lake Grace Road Board | 1924-25 |
| Addenbrooke | J. B. | Hay Street, Perth | Overland | P 161 | Perth Municipality | 1916 |
| Adderley | H. J. | Duke Street | Douglas Motorcycle | N 7 | Northam Municipality | 1922-23 |
| Agar | J. C. | Morawa | Studebaker | PM ● 88 | Perenjori-Morawa Road Board | 1924-25 |
| Agar | J. C. | Morowa | Studebaker | PM ● 88 | Perenjori-Morawa Road Board | 1925-26 |
| Agricultural Bank | - | A.M.P. Buildings | Studebaker 25 H.P. | P 775 | Perth Municipality | 1917-18 |
| Agricultural Bank | - | A.M.P. Buildings | Studebaker 25 H.P. | P 775 | Perth Municipality | 1919 |
| Agricultural Bank | - | A.M.P. Buildings | Sutudebaker 25 H.P. | P 778 | Perth Municipality | 1919 |
| Agricultural Bank | - | Perth (ins. Hickey) | Rugby | 2132 | Metro Private Car | 1925-26 |
| Agriculture Bank | - | A.M.P. Buildings | Studebaker 25 H.P. | P 778 | Perth Municipality | 1917-18 |
| 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 |
