| Rowlands | E. | Wyalkatchem | Overland | WM ● 55 | Wyalkatchem Road Board | 1923-24 |
| Rowlands | E. | Wyalkatchem | Overland | WM ● 55 | Wyalkatchem Road Board | 1924-25 |
| Rowlands | E. | Wyalkatchem | Dodge | WM ● 55 | Wyalkatchem Road Board | 1925-26 |
| Rowlands | E. | Wyalkatchem | Chandler | WM ● 55 | Wyalkatchem Road Board | 1926-27 |
| Rowlands | E. | Wyalkatchem | Chandler | WM ● 55 | Wyalkatchem Road Board | 1927-28 |
| Rowlands | E. | Wyalkatchem | Chevrolet Truck | WM ● 275 | Wyalkatchem Road Board | 1927-28 |
| Rowlands | G. T. | Belmont | Dodge | 14483 | Metro Private Car | 1927-28 |
| Rowlands | R. E. | Bencubbin | Overland Truck | MM ● 53 | Mount Marshall Road Board | 1926-27 |
| Rowlands | R. E. | Bencubbin | Overland Truck | MM ● 53 | Mount Marshall Road Board | 1927-28 |
| Rowlands | R. E. | Bencubbin | Chevrolet | MM ● 188 | Mount Marshall Road Board | 1927-28 |
| Rowlands | S. C. | 218 Adelaide Terrace, Perth | Pontiac | 1635 | Metro Private Car | 1927-28 |
| Rowlands | W. H. | 86 James Street, Perth | Overland | 253 | Metro Private Car | 1923-24 |
| Rowlell Ltd | - | Sheffield House, Hay Street, Perth | Oakland | 13714 | Metro Private Car | 1927-28 |
| Rowles | H. N. | Cunderdin | Ford Truck | ME ● 224 | Meckering Road Board | 1926-27 |
| Rowles | H. N. | Cunderdin | Ford Truck | ME ● 224 | Meckering Road Board | 1927-28 |
| Rowles | I. I. | Goomalling | Maxwell | GO ● 130 | Goomalling Road Board | 1925-26 |
| Rowles | I. I. | Goomalling | Maxwell | GO ● 130 | Goomalling Road Board | 1926-27 |
| Rowles | J. | Koorda | Ford | WM ● 40 | Wyalkatchem Road Board | 1922-23 |
| Rowles | J. | Koorda | Ford | WM ● 40 | Wyalkatchem Road Board | 1923-24 |
| Rowles | J. | Koorda | Ford | WM ● 40 | Wyalkatchem Road Board | 1924-25 |
| Rowles | J. | Koorda | Columbia | WM ● 40 | Wyalkatchem Road Board | 1925-26 |
| Rowles | J. | Koorda | Ford | WM ● 40 | Wyalkatchem Road Board | 1927-28 |
| Rowles | J. J. | Jurokine | Ford | GO ● 80 | Goomalling Road Board | 1924-25 |
| Rowles | J. J. | Goomalling | Chrysler | GO ● 130 | Goomalling Road Board | 1927-28 |
| Rowles | J. J. | Goomalling | Reo Truck | GO ● 194 | Goomalling Road Board | 1927-28 |
| Rowles | R. L. | 56 Holmesdale Road, West Midland | Ford | 12002 | Metro Private Car | 1926-27 |
| Rowles | R. L. | 56 Holmesdale Road, West Midland | Ford | 6984 | Metro Private Car | 1927-28 |
| Rowles | R. L. | 56 Holmesdale Road, West. Midland | Ford | 12002 | Metro Private Car | 1927-28 |
| Rowles | S. J. | 56 Sixth Avenue, Maylands | Chevrolet | 5501 | Metro Private Car | 1924-25 |
| Rowles | S. J. | 16 Walcott Street, Mount Lawley | Chevrolet | 1672 | Metro Private Car | 1927-28 |
| Rowles | T. P. P. | 294 Railway Terrace, Maylands | Overland | 5846 | Metro Private Car | 1924-25 |
| Rowles | T. P. P. | 294 Railway Terrace, Maylands | Overland | 5846 | Metro Private Car | 1925-26 |
| Rowley | B. | Harvey | Ford Truck | H ● 51 | Harvey Road Board | 1927-28 |
| Rowling | H. J. | Baandee | Ford 19 H.P. | KE ● 37 | Kellerberrin Road Board | 1922-23 |
| Rowney | S. | Carrington Street, Palmyra | Citroen | 12531 | Metro Private Car | 1927-28 |
| Roworolt | J. | Dwellingup | Chevrolet | MY ● 99 | Murray Road Board | 1927-28 |
| Rowsell | J. C. | 193 Claremont Avenue, Claremont | Morris-Cowley | 5081 | Metro Private Car | 1925-26 |
| Rowsell | John C. | 193 Claremont Avenue, Claremont | Chrysler | 383 | Metro Private Car | 1927-28 |
| Rowston | F. | Postmaster Northam | Essex | N 155 | Northam Municipality | 1926-27 |
| Rowston | F. | 201 Lincoln Street, North Perth | Essex | 1826 | Metro Private Car | 1927-28 |
| Rowston | F. W. | Narrogin | Ford 20 H.P. | NGN 30 | Narrogin Municipality | 1917-18 |
| Rowston | F. W. | Narrogin | Ford 20 H.P. | NGN 30 | Narrogin Municipality | 1919 |
| Rowtcliff | F. W. | Broomehill | Studebaker | BH ● 10 | Broomehill Road Board | 1926-27 |
| Rowtcliff | F. W. | Broomehill | Studebaker | BH ● 10 | Broomehill Road Board | 1927-28 |
| Rowtcliffe | F. W. | Broomehill | Studebaker | BH ● 10 | Broomehill Road Board | 1925-26 |
| Roxby | Peter | 201 Bulwer Street, Perth | Citroen | 9394 | Metro Private Car | 1927-28 |
| Roy | J. | 44 Royal Arcade Perth | Chevrolet | 4880 | Metro Private Car | 1924-25 |
| Roy | J. | 44 Royal Arcade Perth | Chevrolet | 4880 | Metro Private Car | 1925-26 |
| Roy | J. | Bencubbin | Ford | MM ● 5 | Mount Marshall Road Board | 1925-26 |
| Roy | J. | 44 Royal Arcade Perth | Chevrolet | 4880 | Metro Private Car | 1926-27 |