| Boyan | A. H. | 183 Murray Street, Perth | Studebaker | 2598 | Metro Private Car | 1927-28 |
| Boyd | Edwin | 36 Barrab Street, Fremantle | Studebaker | 12383 | Metro Private Car | 1927-28 |
| Boylan | J. | 10 Marquis Street, West Perth | Studebaker | 10500 | Metro Hire or Trade | 1926-27 |
| Boyle | M. L. | Cunderdin | Buick | ME ● 114 | Meckering Road Board | 1927-28 |
| Bozonich | J. | Yeapin | Chevrolet | KE ● 389 | Kellerberrin Road Board | 1927-28 |
| Brackenreg | R. L. | Welbungin | Chevrolet | MM ● 71 | Mount Marshall Road Board | 1926-27 |
| Brackenreg | R. L. | - | Ford Truck | MM ● 27 | Mount Marshall Road Board | 1927-28 |
| Brackenreg | R. L. | Welbungin | Chevrolet | MM ● 71 | Mount Marshall Road Board | 1927-28 |
| Bradke | R. | Meckering | Ford | ME ● 83 | Meckering Road Board | 1926-27 |
| Bradshaw | H. S. | Quelagetting | Essex | ME ● 198 | Meckering Road Board | 1925-26 |
| Bradshaw | H. S. | Quelagetting | Maxwell | ME ● 198 | Meckering Road Board | 1926-27 |
| Bradshaw | H. S. | Quelagetting | Maxwell | ME ● 198 | Meckering Road Board | 1927-28 |
| Bradshaw | S. W. | Donnybrook | Studebaker 20 H.P. | PE ● 15 | Preston Road Board | 1919 |
| Bradtke | R. | Meckering | Ford | ME ● 83 | Meckering Road Board | 1923-24 |
| Bradtke | R. | Meckering | Ford | ME ● 83 | Meckering Road Board | 1924-25 |
| Bradtke | R. | Meckering | Ford | ME ● 83 | Meckering Road Board | 1925-26 |
| Bradtke | R. | Meckering | Ford | ME ● 83 | Meckering Road Board | 1927-28 |
| Braine | J. | Pemberton | Studebaker | WA ● 25 | Manjimup Road Board | 1925-26 |
| Braine | J. | Pemberton | Studebaker | WA ● 25 | Manjimup Road Board | 1926-27 |
| Braine | J. | Pemberton | Studebaker | WA ● 161 | Manjimup Road Board | 1926-27 |
| Braine | J. | Pemberton | Studebaker | WA ● 25 | Manjimup Road Board | 1927-28 |
| Braine | John | Pemberton | Studebaker | WA ● 25 | Warren Road Board | 1924-25 |
| Brake-Brockman | Miss M. D. | Atkinson Street | Wolseley | N 131 | Northam Municipality | 1927-28 |
| Brandenburg | Rex C. | Wagin | Studebaker | WM 15 | Wagin Municipality | 1922-23 |
| Brandenburg | Rex C. | Wagin | Studebaker | WM ● 15 | Wagin Municipality | 1923-24 |
| Brandenburg | Rex C. | Wagin | Studebaker | WN 15 | Wagin Municipality | 1925-26 |
| Brandenburg | Rex C. | Wagin | Studebaker | WN ● 15 | Wagin Municipality | 1926-27 |
| Brandenburg | Rex C. | Wagin | Studebaker | WN 15 | Wagin Municipality | 1927-28 |
| Branes | M. E. | Kenney Street, Bassendean | Pontiac | 6745 | Metro Private Car | 1927-28 |
| Braunholtz | C. H. | Wickepin | Chevrolet | WK ● 248 | Wickepin Road Board | 1927-28 |
| Braysher | R. J. | Kellerberrin | Ford Truck | KE ● 371 | Kellerberrin Road Board | 1927-28 |
| Braysher | T. | Kellerberrin | Republic Truck | KE ● 217 | Kellerberrin Road Board | 1926-27 |
| Braysher | T. | Kellerberrin | Republic Truck | KE ● 217 | Kellerberrin Road Board | 1927-28 |
| Braysher & Son | F. E. | Kellerberrin | Dodge | KE ● 357 | Kellerberrin Road Board | 1927-28 |
| Breakell | H. | Bencubbin | Dodge | MM 1 | Mount Marshall Road Board | 1924-25 |
| Breakell | H. | Bencubbin | Dodge | MM ● 1 | Mount Marshall Road Board | 1925-26 |
| Breakell | H. | Bencubbin | Dodge | MM ● 1 | Mount Marshall Road Board | 1926-27 |
| Breakell | H. | Bencubbin | Dodge | MM ● 1 | Mount Marshall Road Board | 1927-28 |
| Breakell | H. J. | Gosnells | Overland | GS ● 9 | Gosnells Road Board | 1922-23 |
| Breakell | H. J. | Gosnells | Overland | GS ● 9 | Gosnells Road Board | 1923-24 |
| Breakell | H. J. | Gosnells | Overland | GS ● 9 | Gosnells Road Board | 1924-25 |
| Breakell | H. J. | Gosnells | Overland | 8270 | Metro Private Car | 1925-26 |
| Breakell | H. J. | Gosnells | Overland | 8270 | Metro Private Car | 1926-27 |
| Breakell | H. J. | Gosnells | Fiat | 8270 | Metro Private Car | 1927-28 |
| Breakell | Henry | Bencubbin | Dodge | MM ● 1 | Mount Marshall Road Board | 1923-25 |
| Breakell | T. E. | Ardath | Ford | BK ● 146 | Bruce Rock Road Board | 1925-26 |
| Breakell | T. E. | Ardath | Ford | BK ● 146 | Bruce Rock Road Board | 1926-27 |
| Breakell | T. E. | Ardath | Ford | BK ● 146 | Bruce Rock Road Board | 1927-28 |
| Brearley | S. G. | 14 Kershaw Street, Subiaco | Dodge | 4314 | Metro Private Car | 1925-26 |
| Brearly | S. G. | 14 Kershaw Street, Subiaco | Dodge | 4314 | Metro Private Car | 1924-25 |
