| Rohen | W. F. | 11 Cargill Street, Victoria Park | Chevrolet | 13393 | Metro Private Car | 1926-27 |
| Rohrig | S. | Kanowna | Ford | K ● 75 | Kalgoorlie Road Board | 1926-27 |
| Rohrig | S. | Kanowna | Ford | K ● 75 | Kalgoorlie Road Board | 1927-28 |
| Rohrs | A. | Gnowangerup | Studebaker 20 H.P. | GN 12 | Gnowangerup Road Board | 1916 |
| Rohrs | Jno. | Gnowangerup | Ford 19 H.P. | GN ● 37 | Gnowangerup Road Board | 1922-23 |
| Rohrs | John | Northampton | Chevrolet | NR ● 10 | Northampton Road Board | 1923-24 |
| Roland | A. | Bunbury | Studebaker | BY 33 | Bunbury Municipality | 1926-27 |
| Roland | Benn | Kojonup | Buick | KO ● 111 | Kojonup Road Board | 1926-27 |
| Roland | Benn | Kojonup | Buick | KO ● 111 | Kojonup Road Board | 1927-28 |
| Roland Smith & Co | - | 233 Murray Street, Perth | Chevrolet | 14961 | Metro Private Car | 1927-28 |
| Rolands & Co | - | Harvest Road, North Fremantle | Chevrolet | 15932 | Metro Private Car | 1927-28 |
| Rolfe | A. | Pemberton | Studebaker | WA ● 161 | Manjimup Road Board | 1927-28 |
| Rolfe | B. | Maritana Street | Overland 20 H.P. | KMC 15 | Kalgoorlie Municipality | 1916 |
| Rolfe | B. | Osborne Road | Overland 20 H.P. | EF 103 | East Fremantle Municipality | 1917-18 |
| Rolfe | B. | cr. High & Ord streets, Fremantle | Willys-Knight | 1650 | Metro Private Car | 1924-25 |
| Rolfe | B. | Cnr. High & Ord streets, Fremantle | Willys-Knight | 1650 | Metro Private Car | 1925-26 |
| Rolfe | B. | Cnr. High & Ord Street, Fremantle | Willys-Knight | 11555 | Metro Private Car | 1926-27 |
| Rolfe | Bert | - | E.M.F. 20 H.P. | KMC 7 | Kalgoorlie Municipality | 1915 |
| Rolfe | Bert | - | Maxwell 20 H.P. | KMC 8 | Kalgoorlie Municipality | 1915 |
| Rolfe | Bert | Stirling Street | Ford 20 H.P. | F 40 | Fremantle Municipal Council | 1919 |
| Rolfe | Bert | Corner High & Ord Streets, Fremantle | Willy's-Knight | 1650 | Metro Private Car | 1923-24 |
| Rolfe | Bert | 180 Esplanade Perth | Willys-Knight | 11555 | Metro Private Car | 1927-28 |
| Rolfe | Bert | 180 Esplanade Perth | Willys-Knight | 11555 | Metro Private Car | 1927-28 |
| Rolfe | E. P. | Benaring, Bolgart | Rover | VP ● 8 | Victoria Plains Road Board | 1922-23 |
| Rolfe | E. P. | Benaring, Bolgard | Rover | VP ● 8 | Victoria Plains Road Board | 1923-24 |
| Rolfe | E. P. | Calcarra | Dodge | VP ● 51 | Victoria Plains Road Board | 1925-26 |
| Rolfe | E. P. | Calcarra | Dort | VP ● 60 | Victoria Plains Road Board | 1926-27 |
| Rolfe | E. P. | Calcarra | International Truck | VP ● 77 | Victoria Plains Road Board | 1926-27 |
| Rolfe | E. P. | Calcarra | Dort | VP ● 60 | Victoria Plains Road Board | 1927-28 |
| Rolfe | E. P. | Calcarra | International Truck | VP ● 77 | Victoria Plains Road Board | 1927-28 |
| Rolfe | John | No. 39740 | Bradbury 3½ H.P. Motorcycle | CMC 17 | Coolgardie Municipality | 1915 |
| Rolfe | John | - | Bradbury 3½ H.P. Motorcycle | CMC 16 | Coolgardie Municipality | 1916 |
| Rolfe | R. | Cnr. Balfour & Servetus sts. Swanbourne | Chevrolet | 11026 | Metro Private Car | 1926-27 |
| Romairor | P. | Narembeen | Rugby | NB ● 88 | Narembeen Road Board | 1926-27 |
| Romairor | P. | Narembeen | Rugby | NB ● 88 | Narembeen Road Board | 1927-28 |
| Roman Catholic Church | | Goomalling | Ford 18 H.P. | GO ● 28 | Goomalling Road Board | 1917-18 |
| Roman Catholic Church | - | Goomalling | Ford 18 H.P. | GO ● 28 | Goomalling Road Board | 1919 |
| Rome | E. | Kondinin | Ford Truck | KN ● 40 | Kondinin Road Board | 1925-26 |
| Ronan | J. | Nabawah | Ford 19 H.P. | CU ● 14 | Upper Chapman Road Board | 1922-23 |
| Ronan | J. | Nabawah | Dodge | CU 14 | Chapman Upper Road Board | 1923 - 1924 |
| Ronan | J. | Nabawah | Dodge | CU ● 14 | Upper Chapman Road Board | 1924-25 |
| Ronan | J. | - | Oakland | CU ● 86 | Upper Chapman Road Board | 1925-26 |
| Ronan | J. | - | Oakland | CU ● 86 | Upper Chapman Road Board | 1926-27 |
| Ronan | J. | - | Oakland | CU ● 86 | Upper Chapman Road Board | 1927-28 |
| Ronan | T. | - | Overland | CU ● 92 | Upper Chapman Road Board | 1926-27 |
| Ronan | T. O. | - | Overland | CU ● 92 | Upper Chapman Road Board | 1925-26 |
| Ronan | Thomas | - | Chrysler | CU ● 194 | Upper Chapman Road Board | 1927-28 |
| Roney | C. | Ewington | Indian Motorcycle | CO ● 5 | Collie Road Board | 1922-23 |
| Roney | C. W. | Collie | Ford | CO ● 21 | Collie Road Board | 1923-24 |
| Roney | C. W. | Collie | Ford | CO ● 21 | Collie Road Board | 1924-25 |
