| Ayliffe & Sons | - | Dumbleyung | Studebaker | DU ● 23 | Dumbleyung Road Board | 1924-25 |
| Ayliffe & Sons | - | Dumbleyung | Studebaker | DU ● 23 | Dumbleyung Road Board | 1925-26 |
| Ayliffe & Sons | - | Dumbleyung | Studebaker | DU ● 23 | Dumbleyung Road Board | 1926-27 |
| Ayliffe & Sons | - | Dumbleyung | Studebaker | DU ● 23 | Dumbleyung Road Board | 1927-28 |
| Aylmore | A. | Mingenew | Buick | MI ● 33 | Mingenew Road Board | 1925-26 |
| Aylmore | A. E. | Gnowangerup | Studebaker 20 H.P. | GN 14 | Gnowangerup Road Board | 1916 |
| Aylmore | A. E. | Gnowangerup | Ford | GN ● 27 | Gnowangerup Road Board | 1924-25 |
| Aylmore | A. E. | Gnowangerup | Studebaker | GN ● 27 | Gnowangerup Road Board | 1925-26 |
| Aylmore | A. E. | Gnowangerup | Studebaker | GN ● 27 | Gnowangerup Road Board | 1926-27 |
| Aylmore | Alfred | Tambellup | Ford | TA ● 72 | Tambellup Road Board | 1926-27 |
| Aylmore | Alfred | Tambellup | Ford | TA ● 72 | Tambellup Road Board | 1927-28 |
| Aylmore | E. | Gnowangerup | Ford | GN ● 124 | Gnowangerup Road Board | 1926-27 |
| Aylmore | E. | Gnowangerup | Ford | GN ● 124 | Gnowangerup Road Board | 1927-28 |
| Aylott | W. | Shackleton | Chevrolet | BK ● 18 | Bruce Rock Road Board | 1927-28 |
| Aylwand | W. | Popanyinning | Ford | CN ● 17 | Cuballing Road Board | 1924-25 |
| Aylward | Wm. | Narrogin | Ford | NGN 77 | Narrogin Municipality | 1926-27 |
| Aylward | Wm. | Narrogin | Ford | NGN 77 | Narrogin Municipality | 1927-28 |
| Ayres | F. | Koodra | Chevrolet Truck | WM ● 258 | Wyalkatchem Road Board | 1926-27 |
| Ayres | F. | Koorda | Chevrolet Truck | WM ● 258 | Wyalkatchem Road Board | 1927-28 |
| Ayres | F. T. J. | 54 Angove Street, North Perth | Chevrolet Van | 8424 | Metro Private Car | 1925-26 |
| Ayres | F. T. J. | 54 Angrove Street, North Perth | Chevrolet Van | 8424 | Metro Private Car | 1926-27 |
| Ayres | H. W. H. | Stoneville | Overland | GE ● 60 | Greenmount Road Board | 1926-27 |
| Ayres | H. W. H. | Stoneville | Overland | GE ● 60 | Greenmount Road Board | 1927-28 |
| Ayres | T. | Dwellingup | Ford Truck | MY ● 206 | Murray Road Board | 1926-27 |
| Ayres | T. | Dwellingup | Ford Truck | MY ● 206 | Murray Road Board | 1927-28 |
| Ayto | J. | Merriden | Brockway | MD ● 96 | Merredin Road Board | 1925-26 |
| Ayton | G. | 58 Jersey Street, Jolimont | Ariel | 1109 | Metro Motorcycle | 1922-23 |
| B'Brien | J. | Geraldton | Dodge | G ● 23 | Geraldton Road Board | 1927-28 |
| B.C.D. & Piesse | - | 200 Wellington Street, Perth | Garford Wagon | 1091 | Metro Private Car | 1922-23 |
| B.C.D. & Piesse Ltd | - | Wellington Street, Perth | Garford Wagon | 2779 | Metro Private Car | 1924-25 |
| B.C.D. & Piesse Ltd | - | 200 Wellington Street, Perth | Ford | 7740 | Metro Private Car | 1925-26 |
| B.C.D. & Piesse Ltd | - | Wellington Street, Perth | Garford Wagon | 2779 | Metro Private Car | 1925-26 |
| B.C.D. & Piesse Ltd | - | Wellington Street, Perth | Garford Wagon | 2779 | Metro Private Car | 1926-27 |
| B.C.D. & Piesse Ltd | - | 200 Wellington Street, Perth | Ford Wagon | 13541 | Metro Private Car | 1927-28 |
| B.C.D. & Piesse Ltd | - | Wellington Street, Perth | Garford Wagon | 2779 | Metro Private Car | 1927-28 |
| B.C.D. and Piesse | - | 200 Wellington Street, Perth | Garford Wagon | 1091 | Metro Private Car | 1923-24 |
| B.C.D. and Piesse Ltd | - | Wellington Street, Perth | Garford Wagon | 2779 | Metro Private Car | 1923-24 |
| Babbs | C. C. | Capel | Chrysler | CP ● 93 | Capel Road Board | 1927-28 |
| Babel | A. | Buckinghams Mill | Ford | CO ● 74 | Collie Road Board | 1925-26 |
| Babel | A. | Buckingham Mill | Ford | CO ● 74 | Collie Road Board | 1927-28 |
| Baber | E. M. | Waeel | Ford | ME ● 325 | Meckering Road Board | 1927-28 |
| Bacchus Marsh Milk Coy. | - | 184 Murray Street | Ford 20 H.P. | P 624 | Perth Municipality | 1917-18 |
| Bacchus Marsh Milk Coy. | - | 184 Murray Street | Ford 20 H.P. | P 624 | Perth Municipality | 1919 |
| Bachman | W. | Merredin | Fiat | MD ● 98 | Merredin Road Board | 1927-28 |
| Back | A. H. | Burekup | Chevrolet Truck | DA ● 79 | Dardanup Road Board | 1927-28 |
| Back | F. | Katanning | Moon | KA ● 335 | Katanning Road Board | 1927-28 |
| Back | F. F. | Lily Street, South Fremantle | Douglas 2¾ Motorcycle | F 120 | Fremantle Municipal Council | 1917-18 |
| Back | F. T. | 85 Lilly Street | Harley-Davidson 7-9 H.P. | F 120 | Fremantle Municipal Council | 1919 |
| Back | F. T. | 83 Lilly Street, Fremantle | Moon | 1932 | Metro Private Car | 1924-25 |
| Back | F. T. | 85 Lily Street, Fremantle | Moon | 1932 | Metro Private Car | 1926-27 |
