| Bott | R. C. | Williams | Buick Four | WL ● 2 | Williams Road Board | 1922-23 |
| Bott | R. C. | Williams | Buick Four | WL ● 2 | Williams Road Board | 1923-24 |
| Bott | R. C. | Williams | Oakland | WL ● 3 | Williams Road Board | 1924-25 |
| Bott | R. C. | Williams | Oakland | WL ● 3 | Williams Road Board | 1925-26 |
| Bott | R. C. | National Bank Subiaco | Oakland | 13278 | Metro Private Car | 1926-27 |
| Bott | R. E. | 42 Bronte Street, East Perth | Rudge-Multi 3½ H.P. Motorcycle | P 664 | Perth Municipality | 1919 |
| Bott | R. E. | 28 Bronte Street, East Perth | Chevrolet | 13890 | Metro Private Car | 1926-27 |
| Bott | R. R. | Manjimup | Douglas 2½ H.P. Motorcycle | WA ● 16 | Warren Road Board | 1919 |
| Bott | R. R. | 42 Bronte Street, East Perth | New Hud. & Sidecar | 891 | Metro Motorcycle | 1922-23 |
| Bott | R. R. | 42 Broute Street, East Perth | Overland | 4898 | Metro Private Car | 1923-24 |
| Botterill | R. | Tootra, Moora | Ford | M ● 25 | Moora Road Board | 1917-18 |
| Botterill | R. | Tootra, Moora | Ford | M 25 | Moora Road Board | 1919 |
| Botterill | R. C. | "Toota" Walebing | Ford 20 H.P. | M ● 25 | Moora Road Board | 1922-23 |
| Botterill | R. C. | Tootra, Walebing | Ford 20 H.P. | M ● 25 | Moora Road Board | 1923-24 |
| Bottrill | I. | Pingelly | Ford | PN ● 48 | Pingelly Road Board | 1923-24 |
| Bottrill | L. | Pingelly | Ford | PN ● 48 | Pingelly Road Board | 1924-25 |
| Boucaut | P. | Boyanup | Chevrolet | CP ● 89 | Capel Road Board | 1927-28 |
| Boucher | J. | Dumbleyung | Ford 20 H.P. | DU ● 21 | Dumbleyung Road Board | 1922-23 |
| Boucher | J. | Dumbleyung | Ford 20 H.P. | DU ● 21 | Dumbleyung Road Board | 1923-24 |
| Boucher | J. | Dumbleyung | Maxwell | DU ● 21 | Dumbleyung Road Board | 1924-25 |
| Boucher | J. | Dumbleyung | Maxwell | DU ● 21 | Dumbleyung Road Board | 1925-26 |
| Boucher | J. | Northam | Guy | N ● 36 | Northam Road Board | 1925-26 |
| Boucher | J. | Dumbleyung | Maxwell | DU ● 21 | Dumbleyung Road Board | 1926-27 |
| Boucher | J. | Dumbleyung | Maxwell | DU ● 21 | Dumbleyung Road Board | 1927-28 |
| Boucher | Jas. | Fitzgerald Street | Ford Truck | N 36 | Northam Municipality | 1924-25 |
| Bouchier | J. | Meekatharra | Republic Truck | MK ● 63 | Meekatharra Road Board | 1925-26 |
| Boueman | J. | Carnamah | Chevrolet Truck | CA ● 112 | Carnamah Road Board | 1926-27 |
| Bouge | D. | Francis Street, Mount Lawley | Studebaker | 3103 | Metro Hire or Trade | 1927-28 |
| Bouge | Mrs M. A. | 119 Goderich Street, East Perth | Essex | 12709 | Metro Private Car | 1927-28 |
| Bougher | Mrs F. | cnr Hay & King streets, Perth | De Dion | 5743 | Metro Private Car | 1924-25 |
| Bougher | Mrs F. | Cnr. Hay & King Street, Perth | De Dion | 5743 | Metro Private Car | 1926-27 |
| Bougher | Mrs F. | Cnr. Hay & King Street, Perth | De Dion | 5743 | Metro Private Car | 1927-28 |
| Bouie & Lupton | - | Nannine | Ford Waggon | NN ● 22 | Nanine Road Board | 1923-24 |
| Bouie & Lupton | - | Nannine | Ford Wagon | NN ● 22 | Nannine Road Board | 1924-25 |
| Boulden | A. | Waterloo | Chevrolet | DA ● 78 | Dardanup Road Board | 1927-28 |
| Boulden | J. L. | Bunbury | Sunbeam 19H.P. | By 27 | Bunbury Municipality | 1922-23 |
| Boulden | J. L. | Bunbury | Overland | BY 27 | Bunbury Municipality | 1923 - 1924 |
| Boulden | J. L. | Bunbury | Overland | By 27 | Bunbury Municipality | 1924-25 |
| Boulden | J. L. | Bunbury | Overland | BY 27 | Bunbury Municipality | 1925-26 |
| Boulden | W. A. | 167 Claremont Avenue, Claremont | Citroen | 11580 | Metro Private Car | 1927-28 |
| Boulden | W. G. | Claremont | Ford | 2301 | Metro Private Car | 1926-27 |
| Boulden | W. G. | 167 Claremont Avenue, Claremont | Ford | 2301 | Metro Private Car | 1927-28 |
| Boulder | W. G. | 167 Claremont Avenue, Claremont | Ford | 2301 | Metro Private Car | 1925-26 |
| Boulder City Brewery | - | Wittenoom Street, Boulder | Ford Lorry | B 44 | Boulder Municipality | 1924-25 |
| Boulder City Brewery | - | Wittenoom Street, Boulder | Ford Lorry | B 44 | Boulder Municipality | 1925-26 |
| Boulder City Brewery | - | Wittenoom Street, Boulder | Ford Lorry | B44 | Boulder Municipality | 1925-26 |
| Boulder Meat Supplies | - | Piesse Street, Boulder | Austin | B 14 | Boulder Municipality | 1924-25 |
| Boulder Meat Supplies | - | Boulder | Lorry | B 39 | Boulder Municipality | 1924-25 |
| Boulder Meat Supply | - | Plesse Street, Boulder | Austin | B 14 | Boulder Municipality | 1925-26 |
| Boulder Meat Supply | - | Boulder | Ford Truck | B 39 | Boulder Municipality | 1925-26 |
