| Harcourt | J. | 49 Highway Nedlands | Fiat | 13952 | Metro Private Car | 1926-27 |
| Harcourt | J. M. | Hardy StreetNedlands | Fiat | 519 | Metro Private Car | 1927-28 |
| Harcourt | Kohel | C.T. Club Perth | Dodge | 549 | Metro Private Car | 1922-23 |
| Hard | G. | Osborne Park | B.S.A. 3½ H.P. Motorcycle | ML 47 | Perth Road Board | 1915 |
| Hard | G. | Osborne Park | B.S.A. 3½ H.P. Motorcycle | P 61 | Perth Municipality | 1916 |
| Hard | G. | - | Cycle | P ● 47 | Perth Road Board | 1919 |
| Hard | G. A. | Bencubbin | Cleveland | MM ● 27 | Mount Marshall Road Board | 1925-26 |
| Hard | G. A. | Francis Street, Geraldton | Chevrolet | GN 188 | Geraldton Municipality | 1927-28 |
| Hard | Glen | Post Office, Osborne Park | B.S.A. 3½ H.P. Motorcycle | P 47 | Perth Municipality | 1916 |
| Hardacre | T. | Tarwonga | Dodge | NO ● 30 | Narrogin Road Board | 1925-26 |
| Hardacre | T. | Tarwonga | Dodge | NO ● 30 | Narrogin Road Board | 1926-27 |
| Hardacre | T. | Tarwonga | Dodge | NO ● 30 | Narrogin Road Board | 1927-28 |
| Hardacre | T. A. | Tarwonga | Dodge | NA ● 30 | Narrogin Road Board | 1924-25 |
| Harddrill | W. J. | - | Republic Truck | N ● 132 | Northam Road Board | 1927-28 |
| Harde | J. | Hines Hill | Ford | MD ● 149 | Merredin Road Board | 1925-26 |
| Harden | E. | Carbarup | De Dion 8 H.P. | PL ● 22 | Plantagenet Road Board | 1917-18 |
| Harden | E. | Carbarup | Precision 3½ H.P. Motorcycle | PL ● 34 | Plantagenet Road Board | 1917-18 |
| Harden | E. | Carbarup | Precision 3½ H.P. Motorcycle | PL ● 34 | Plantagenet Road Board | 1919 |
| Harden | H. | Mount Barker | 5 H.P. | PL 9 | Plantagenet Road Board | 1915 |
| Harden | P. | Narrogin | Indian 7 H.P. Motorcycle | NGN 1 | Narrogin Municipality | 1915 |
| Harden | P. | Narrogin | Indian 7 H.P. | NGN 1 | Narrogin Municipality | 1916 |
| Hardenen | F. H. | South Street, Fremantle | Essex | 8938 | Metro Private Car | 1925-26 |
| Hardenen | F. H. | South Street, Fremantle | Essex | 8938 | Metro Private Car | 1926-27 |
| Harder | F. | Quairading | Dodge | Q ● 60 | Quairading Road Board | 1927-28 |
| Hardey | E. A. | Kojonup | Ford | KO ● 126 | Kojonup Road Board | 1925-26 |
| Hardey | E. A. | Kojonup | Ford | KO ● 126 | Kojonup Road Board | 1926-27 |
| Hardey | E. A. | Kojonup | Ford | KO ● 126 | Kojonup Road Board | 1927-28 |
| Hardey | H. | Serpentine | Buick | SJ ● 8 | Serpentine-Jarrahdale Road Board | 1925-26 |
| Hardey | H. | Serpentine | Buick | SJ ● 8 | Serpentine-Jarrahdale Road Board | 1926-27 |
| Hardey | H. | Serpentine | Buick | SJ ● 8 | Serpentine-Jarrahdale Road Board | 1927-28 |
| Hardey | H. R. | Strelley Station | Ford | PH ● 19 | Port Hedland Road Board | 1924-25 |
| Hardey | H. R. L. | Clothilde Street, Mount Lawley | Hupmobile 17-9 H.P. | P 78 | Perth Municipality | 1916 |
| Hardey | H. R. L. | - | Hupmobile | P ● 78 | Perth Road Board | 1919 |
| Hardey | H. R. L. | Port Hedland | Ford | PH ● 19 | Port Hedland Road Board | 1925-26 |
| Hardgrave | Seth | Wagin | Ford | WM 28 | Wagin Municipality | 1922-23 |
| Hardgrave | Seth | Wagin | Ford | WM ● 28 | Wagin Municipality | 1923-24 |
| Hardie | A. | 43 Mathoura Street, Midland Junction | Chevrolet | 16034 | Metro Private Car | 1927-28 |
| Hardie | A. A. | Narrogin | Chevrolet | NO ● 80 | Narrogin Road Board | 1926-27 |
| Hardie | A. A. | Narrogin | Chevrolet | NO ● 80 | Narrogin Road Board | 1927-28 |
| Hardie | A. C. | Narrogin | Austin | NGN 87 | Narrogin Municipality | 1925-26 |
| Hardie | A. E | Narrogin | Buick | NGN 5 | Narrogin Municipality | 1923-24 |
| Hardie | A. E. | Culbina, Narrogin | Flanders | NA 1 | Narrogin Road Board | 1916 |
| Hardie | A. E. | Culbina, Narrogin | Flanders 22 H.P. | NA ● 1 | Narrogin Road Board | 1917-18 |
| Hardie | A. E. | Culbina, Narrogin | Buick 25 H.P. | NA ● 3 | Narrogin Road Board | 1917-18 |
| Hardie | A. E. | Culbina, Narrogin | Flanders 22 H.P. | NA 1 | Narrogin Road Board | 1919 |
| Hardie | A. E. | Culbina, Narrogin | Buick 25 H.P. | NA 3 | Narrogin Road Board | 1919 |
| Hardie | A. E. | Culbina, Narrogin | Buick | NA ● 1 | Narrogin Road Board | 1922-23 |
| Hardie | A. E. | Narrogin | Buick | NGN 5 | Narrogin Municipality | 1924-25 |
| Hardie | A. E. | Narrogin | Buick | NGN 5 | Narrogin Municipality | 1925-26 |
| Hardie | E. A | Wongan Hills | Austin | WB ● 27 | Wongan-Ballidu Road Board | 1926-27 |
