| Blackburn | G. H. S. | Albany | Douglas 3½ H.P. Motorcycle | A 26 | Albany Municipality | 1917-18 |
| Blackburn | G. H. S. | Albany | Douglas 3½ H.P. Motorcycle | A 26 | Albany Municipality | 1919 |
| Blackburn | H. | Balingup | Ford 20 H.P. | BN ● 5 | Balingup Road Board | 1917-18 |
| Blackburn | H. | Balingup | Ford 20 H.P. | BN ● 5 | Balingup Road Board | 1919 |
| Blackburn | H. | Monmouth Street, Perth | Buick | 5944 | Metro Private Car | 1924-25 |
| Blackburn | H. | Albany | Buick | A 19 | Municipality of Albany | 1925-26 |
| Blackburn | H. | Albany | Buick | A 19 | Municipality of Albany | 1926-27 |
| Blackburn | H. | 16 Regent Street, Mount Lawley | Buick | 1786 | Metro Private Car | 1927-28 |
| Blackburn | H. J. | 42 Monmouth Street, Perth | Buick | 5944 | Metro Private Car | 1925-26 |
| Blackburn | Harry | Balingup | Buick | BN ● 21 | Balingup Road Board | 1923-24 |
| Blackburn | J. T. | Greenmount | Humber | GE ● 1 | Greenmount Road Board | 1919 |
| Blackburn & Son | - | Perth | Sentinal Steam Wagon | 3645 | Metro Hire or Trade | 1927-28 |
| Blackburn & Son Ltd | - | 609 Wellington Street, Perth | Sentinel | 3509 | Metro Hire or Trade | 1925-26 |
| Blackburn & Son Ltd | - | 609 Wellington Street, Perth | Brockway Wagon | 3511 | Metro Hire or Trade | 1925-26 |
| Blackburn & Sons | - | 609 Wellington Street, Perth | Sentinel | 3509 | Metro Hire or Trade | 1926-27 |
| Blackburn & Sons. | - | 609 Wellington Street, Perth | Sentinel | 3509 | Metro Private Car | 1924-25 |
| Blackburn & Sons. | - | 609 Wellington Street, Perth | Brock Wagon | 3511 | Metro Private Car | 1924-25 |
| Blackburn Sons Ltd | - | 609 Wellington Street, Perth | Brockway | 10429 | Metro Hire or Trade | 1926-27 |
| Blackburn Sons Ltd | - | 609 Wellington Street, Perth | Brookway | 10429 | Metro Hire or Trade | 1927-28 |
| Blackett | C. E. | Boulder Perseverance | Hupmobile | K ● 27 | Kalgoorlie Road Board | 1927-28 |
| Blackett | C. R. | Fimiston | Indian Motorcycle | K ● 10 | Kalgoorlie Road Board | 1922-23 |
| Blackett | C. R. | Horseshoe Gold Mine | Hupmobile | K ● 27 | Kalgoorlie Road Board | 1926-27 |
| Blackford | G. H. | Boyup Brook | Ford | BU ● 25 | Upper Blackwood Road Board | 1926-27 |
| Blackiston | F. W. | Tammin | Studebaker | ME ● 49 | Meckering Road Board | 1922-23 |
| Blackiston | R. J. | Yandanooka | Ford | MI ● 14 | Mingenew Road Board | 1927-28 |
| Blackleek | Stanley E. | Guildford Road, Belmont | Merri-Oxford | 56 | Metro Private Car | 1927-28 |
| Blacklock | Doris | Guildford Road, Belmont | Morris-Oxford | 2561 | Metro Private Car | 1927-28 |
| Blacklock | Stanley E. | Guildford Road, Belmont | Morris-Oxford | 56 | Metro Private Car | 1925-26 |
| Blacklock | Stanley E. | Guilford Road, Belmont | Morris-Oxford | 56 | Metro Private Car | 1926-27 |
| Blacklock | Stenley. E. | Guildford Road, Belmont | Morris-Oxford | 56 | Metro Private Car | 1926-27 |
| Blackman | B. E. | Harvey Street, Victoria Park | Ford Wagon | 4293 | Metro Private Car | 1924-25 |
| Blackman | B. E. | Harvey Street, Victoria Park | Ford Wagon | 4293 | Metro Private Car | 1925-26 |
| Blackman | B. E. | 46 Harvey Street, Victoria Park | Overland | 9603 | Metro Private Car | 1926-27 |
| Blackmoore | S. | Kojonup | Rugby | KO ● 49 | Kojonup Road Board | 1927-28 |
| Blackmore | E. | Shenton House Hay Street | Columbia | 6801 | Metro Private Car | 1925-26 |
| Blackmore | E. | Shenton House, Hay Street | Columbia | 6801 | Metro Private Car | 1926-27 |
| Blackmore | E. | Wongan Hills | Columbia | WB ● 244 | Wongan-Ballidu Road Board | 1927-28 |
| Blackmore | J. T. | Yord Road, Greenmount | Chevrolet | 2607 | Metro Private Car | 1923-24 |
| Blackmore | J. T. | York Road, Greenmount | Chevrolet | 2607 | Metro Private Car | 1924-25 |
| Blackmore | J. T. | York Road, Greenmount | Chevrolet | 2607 | Metro Private Car | 1925-26 |
| Blackmore | L. | Ogden Street, Collie | Studebaker | CM 12 | Collie Municipality | 1925-26 |
| Blackmore | L. | Ogden Street, Collie | Studebaker | CM 12 | Collie Municipality | 1926-27 |
| Blackmore Bros | - | Ogden Street, Collie | Chevrolet | CM 99 | Collie Municipality | 1925-26 |
| Blackwood | Miss I. | Katanning | Ford | KA ● 38 | Katanning Road Board | 1926-27 |
| Blackwood | Miss I. | Katanning | Ford | KA ● 38 | Katanning Road Board | 1927-28 |
| Bladen | Dr | Narembeen | Chevrolet | NB ● 181 | Narembeen Road Board | 1927-28 |
| Bladon | B. M. | 74 Derby Road, Subiaco | Whippet | 5641 | Metro Private Car | 1927-28 |
| Blaikie | W. B. | Hindmarsh | Chevrolet | D ● 115 | Dowerin Road Board | 1925-26 |
| Blaikie | W. B. | Hindmarsh | Chevrolet | D ● 115 | Dowerin Road Board | 1926-27 |
| Blaikie | W. B. | Hindmarsh | Chevrolet | D ● 115 | Dowerin Road Board | 1927-28 |
