| Barnes | T. C. | Kellerberrin | Buick | KE ● 43 | Kellerberrin Road Board | 1925-26 |
| Barnes | T. C. | Kellerberrin | Buick | KE ● 43 | Kellerberrin Road Board | 1926-27 |
| Barnes | T. C. | Kellerberrin | Buick | KE ● 43 | Kellerberrin Road Board | 1927-28 |
| Barnes | W. H | Harrismith | Dodge | WK ● 82 | Wickepin Road Board | 1926-27 |
| Barnes | W. H. | Harrismith | Dodge | WK ● 82 | Wickepin Road Board | 1927-28 |
| Barnes | W. W. | Kukerin | Chevrolet Truck | DU ● 179 | Dumbleyung Road Board | 1927-28 |
| Barnett | Thos. | Mount Barker | Chevrolet | PL ● 94 | Plantagenet Road Board | 1927-28 |
| Barrett | H. V. F. | Newdegate | Buick | LG ● 44 | Lake Grace Road Board | 1927-28 |
| Barrett | R. G | Harrismith | Dodge | WK ● 196 | Wickepin Road Board | 1926-27 |
| Barrowcliffe | H. | Newdegate | Chevrolet | LG ● 147 | Lake Grace Road Board | 1927-28 |
| Barry | G E. | Doodlakine | Ford Truck | KE ● 245 | Kellerberrin Road Board | 1926-27 |
| Barry | G. | Doodlakine | Rugby | KE ● 142 | Kellerberrin Road Board | 1925-26 |
| Barry | G. | Doodlakine | Rugby | KE ● 142 | Kellerberrin Road Board | 1926-27 |
| Barry | G. | Doodlakine | Rugby | KE ● 142 | Kellerberrin Road Board | 1927-28 |
| Barry | G. E. | Doodlakine | Ford Truck | KE ● 245 | Kellerberrin Road Board | 1927-28 |
| Barry | W. | Cunderdin | Ford Truck | ME ● 252 | Meckering Road Board | 1926-27 |
| Barry | W. | Cunderdin | Ford Truck | ME ● 252 | Meckering Road Board | 1927-28 |
| Barsden | J. H. | Leake Street | Talbot 15-20 H.P. | PG 33 | Peppermint Grove Road Board | 1915 |
| Barsden | J. H. | Leake Street | Talbot 15-20 H.P. | PG 33 | Peppermint Grove Road Board | 1916 |
| Bartlett & Harvey | - | Mount Barker | Ford | PL ● 72 | Plantagenet Road Board | 1925-26 |
| Bartlett & Harvey | - | Mount Barker | Ford | PL ● 72 | Plantagenet Road Board | 1926-27 |
| Bartlett & Harvey | - | Mount Barker | Chevrolet Truck | PL ● 72 | Plantagenet Road Board | 1927-28 |
| Barton | Norman | Baandee | Ford Truck | KE ● 232 | Kellerberrin Road Board | 1926-27 |
| Barton | Norman | Baandee | Ford Truck | KE ● 232 | Kellerberrin Road Board | 1927-28 |
| Barton | R. and Sons | Baandee | Ford | KE ● 79 | Kellerberring Road Board | 1923-24 |
| Barton & Son | R. | Baandee | Commerce Truck | KE ● 177 | Kellerberrin Road Board | 1927-28 |
| Barton & Sons | R. | Baandee | Ford | KE ● 79 | Kellerberrin Road Board | 1924-25 |
| Barton & Sons | R. | Baandee | Ford | KE ● 79 | Kellerberrin Road Board | 1925-26 |
| Barton & Sons | R. | Baandee | Commerce Truck | KE ● 177 | Kellerberrin Road Board | 1925-26 |
| Barton & Sons | R. | Baandee | Ford | KE ● 79 | Kellerberrin Road Board | 1926-27 |
| Barton & Sons | R. | Baandee | Ford | KE ● 79 | Kellerberrin Road Board | 1927-28 |
| Barton & Sons | R. G. | Baandee | Commerce Truck | KE ● 177 | Kellerberrin Road Board | 1926-27 |
| Basby | J. | Wittakers Mill | Chevrolet | MY ● 122 | Murray Road Board | 1925-26 |
| Basby | J. | Wittakers Mill | Chevrolet | MY ● 122 | Murray Road Board | 1926-27 |
| Basby | J. | Wittakers Mill | Chevrolet | MY ● 122 | Murray Road Board | 1927-28 |
| Baskerville | G. | Augusta | Chevrolet | AU ● 15 | Augusta Road Board | 1926-27 |
| Baskerville | G. | Augusta | Chevrolet | AU ● 15 | Augusta Road Board | 1927-28 |
| Baskerville | V. | Mundijong | Overland | SJ ● 21 | Serpentine-Jarrahdale Road Board | 1925-26 |
| Baskerville | V. | Mundijong | Overland | SJ ● 21 | Serpentine-Jarrahdale Road Board | 1926-27 |
| Baskerville | V. H. | Jarrahdale | Ford | SJ ● 28 | Serpentine-Jarrahdale Road Board | 1926-27 |
| Baskerville | V. H. | Mundijong | Overland | SJ ● 21 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Baskerville | V. H. | Jarrahdale | Ford | SJ ● 28 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Basketber | G. N. | - | Gray Truck | DK ● 8 | Drakesbrook Road Board | 1926-27 |
| Basketter | J. G. | Barons Mill | Ford Truck | DR ● 22 | Darling Range Road Board | 1926-27 |
| Bastyn | - | Pingrup | Whippet Truck | KT ● 84 | Kent Road Board | 1927-28 |
| Batchelor | F. A | Wickepin | Dodge | WK ● 52 | Wickepin Road Board | 1926-27 |
| Batchelor | F. A. | East Wickepin | Dodge | WK ● 62 | Wickepin Road Board | 1925-26 |
| Batchelor | F. A. | Wickepin | Dodge | WK ● 52 | Wickepin Road Board | 1927-28 |
| Batchelor | Fred A. | Malyalling | Studebaker | WK ● 62 | Wickepin Road Board | 1923-24 |
| Batchelor | Fred A. | Malyalling | Studebaker | WK ● 62 | Wickepin Road Board | 1924-25 |
