| Horner | W. | Kellerberrin | Chevrolet | KE ● 88 | Kellerberrin Road Board | 1924-25 |
| Horner | W. | Kellerberrin | Chevrolet | KE ● 88 | Kellerberrin Road Board | 1925-26 |
| Horner | W. | Kellerberrin | Oakland | KE ● 88 | Kellerberrin Road Board | 1926-27 |
| Horner | W. | Kellerberrin | Oakland | KE ● 88 | Kellerberrin Road Board | 1927-28 |
| Horsfield & Brackelman | - | Slaisbury Street | Ford | K ● 65 | Kalgoorlie Road Board | 1924-25 |
| Horsfield & Brackelman | - | Salisbury Road, Kalgoorlie | Ford | K ● 65 | Kalgoorlie Road Board | 1925-26 |
| Horsfield & Brackelman | - | Salisbury Road, Kalgoorlie | Ford | K ● 65 | Kalgoorlie Road Board | 1926-27 |
| Horsfield & Brackelman | - | Salisbury Road, Kalgoorlie | Ford | K ● 65 | Kalgoorlie Road Board | 1927-28 |
| Horwood | F. J. | Cunderdin | Dodge | ME ● 51 | Meckering Road Board | 1925-26 |
| Horwood | F. J. | Cunderdin | Dodge | ME ● 51 | Meckering Road Board | 1926-27 |
| Horwood | F. J. | Cunderdin | Dodge | ME ● 51 | Meckering Road Board | 1927-28 |
| Hosing | J. | Wickepin | Dodge | WK ● 121 | Wickepin Road Board | 1925-26 |
| Hosken | J. | Northampton | Chevrolet | NR ● 22 | Northampton Road Board | 1925-26 |
| Hosken | J. | Northampton | Chevrolet | NR ● 22 | Northampton Road Board | 1927-28 |
| Hosken | J. | Wickepin | Chevrolet | WK ● 235 | Wickepin Road Board | 1927-28 |
| Hosken | J. | North Terrace, Boulder | Citroen | B 9 | Boulder Municipality | 1927-28 |
| Hosken | James | Wickepin | Buick | WK ● 133 | Wickepin Road Board | 1925-26 |
| Hosken | L. | Wickepin | Humber | WK ● 233 | Wickepin Road Board | 1927-28 |
| Hosken | S. M. J. | Northhampton | Chevrolet | NR ● 54 | Northampton Road Board | 1924-25 |
| Hosken | S. M. J. | Northampton | Chevrolet | NR ● 54 | Northampton Road Board | 1925-26 |
| Hosken Bros | - | Dorakin | Buick | WK ● 133 | Wickepin Road Board | 1926-27 |
| Hosken Bros | - | Dorakin | Buick | WK ● 133 | Wickepin Road Board | 1927-28 |
| Hosking | H. | Wickepin | Overland 20 H.P. | WK 9 | Wickepin Road Board | 1916 |
| Hosking | H. | Dorakin | Ford 20 H.P. | WK ● 7 | Wickepin Road Board | 1917-18 |
| Hosking | J. H. (Senr. ) | Wickepin | Hupmobile | WK ● 73 | Wickepin Road Board | 1927-28 |
| Hoskings | - | Newdegate | Ford Truck | LG ● 151 | Lake Grace Road Board | 1927-28 |
| Hoskings | W. | Newdegate | Chevrolet Truck | LG ● 149 | Lake Grace Road Board | 1927-28 |
| Hoskins | - | Lake Grace | Chevrolet | LG ● 62 | Lake Grace Road Board | 1925-26 |
| Hoskins | - | Lake Grace | Chevrolet | LG ● 62 | Lake Grace Road Board | 1926-27 |
| Hoskins | E W. | 121 Bourke Street, Leederville | Chevrolet | 9004 | Metro Private Car | 1926-27 |
| Hoskins | E. W. | 121 Bourke Street, Leederville | Chevrolet | 9004 | Metro Private Car | 1925-26 |
| Hoskins | E. W. | Bourke Street, Leederville | Ford Wagon | 14925 | Metro Private Car | 1927-28 |
| Hoskins | E. W. | Lake Grace | Chevrolet | LG ● 62 | Lake Grace Road Board | 1927-28 |
| Hoskins | J. H | Dorakin | Dodge | WK ● 121 | Wickepin Road Board | 1926-27 |
| Hoskins | J. H. | Dorakin | Dodge | WK ● 121 | Wickepin Road Board | 1927-28 |
| Hotham | H. | Yealering | Ford Truck | WK ● 173 | Wickepin Road Board | 1926-27 |
| Hotham | H. | Yealering | Ford Truck | WK ● 173 | Wickepin Road Board | 1927-28 |
| House | F. M. B. | Kwobrup | Ford | KT ● 20 | Kent Road Board | 1924-25 |
| House | F. M. B. | Kwobrup | Ford | KT ● 20 | Kent Road Board | 1925-26 |
| House | F. M. B. | Kwobrup | Chevrolet | KT ● 20 | Kent Road Board | 1926-27 |
| House | F. M. B. | Kwobrup | Chevrolet | KT ● 20 | Kent Road Board | 1927-28 |
| House | H. | Katanning | Studebaker | KA ● 151 | Katanning Road Board | 1925-26 |
| House | Mrs E. E. | Katanning | Studebaker | KA ● 35 | Katanning Road Board | 1925-26 |
| Howard | F. W. H. | Mount Keith | Ford 20 H.P. | WU 3 | Wiluna Road Board | 1916 |
| Howard | J. | Kelmscott | Bean Wagon | 12645 | Metro Private Car | 1927-28 |
| Howard | T. C. | Kelmscott | Chevrolet Wagon | 12630 | Metro Private Car | 1927-28 |
| Howard | W. G. | Meckering | Dodge | ME ● 282 | Meckering Road Board | 1926-27 |
| Howard | W. G. | Meckering | Dodge | ME ● 282 | Meckering Road Board | 1927-28 |
| Howard | W. H. | Wickepin | Chevrolet | WK ● 239 | Wickepin Road Board | 1927-28 |
| Howarth | G. S. | 208 Barker Road, Subiaco | Citroen | 7930 | Metro Private Car | 1926-27 |
