| Patterson | R. J. | Warren Road | Rugby | KT ● 28 | Kent Road Board | 1925-26 |
| Patterson | R. J. | Warren Road | Rugby | KT ● 28 | Kent Road Board | 1926-27 |
| Patterson | R. J. | Warren Road | Rugby | KT ● 28 | Kent Road Board | 1927-28 |
| Patterson | R. T. | Woodanilling | Rugby | WO ● 41 | Woodanilling Road Board | 1924-25 |
| Patterson | R. T. | Woodanilling | Rugby | WO ● 41 | Woodanilling Road Board | 1925-26 |
| Patterson | R. T. | Woodanilling | Rugby | WO ● 41 | Woodanilling Road Board | 1926-27 |
| Patterson | R. T. | Woodanilling | Rugby | WO ● 41 | Woodanilling Road Board | 1927-28 |
| Patterson | W. | Wongan Hills | Chevrolet Truck | WB ● 206 | Wongan-Ballidu Road Board | 1927-28 |
| Patterson | W. | Parkers Range | Rugby | YL ● 4 | Yilgarn Road Board | 1927-28 |
| Patterson | W. A. | Parker's Range | Ford | YL ● 3 | Yilgarn Road Board | 1924-25 |
| Patterson | W. A. | Parker's Range | Rugby | YL ● 19 | Yilgarn Road Board | 1924-25 |
| Patterson | W. A. | Parker's Range | Ford | YL ● 25 | Yilgarn Road Board | 1924-25 |
| Patterson | W. A. | Parkers Range | Ford | YL ● 3 | Yilgarn Road Board | 1925-26 |
| Patterson | W. A. | Parker's Range | Rugby | YL ● 19 | Yilgarn Road Board | 1925-26 |
| Patterson | W. A. | Parkers Range | Rugby | YL ● 4 | Yilgarn Road Board | 1926-27 |
| Patterson | W. G. | Woodanilling | Ford | WO ● 27 | Woodanilling Road Board | 1924-25 |
| Patterson | W. G. | Woodanilling | Ford | WO ● 27 | Woodanilling Road Board | 1925-26 |
| Patterson | W. G. | Woodanilling | Ford | WO ● 27 | Woodanilling Road Board | 1926-27 |
| Patterson | W. G. | Woodanilling | Ford | WO ● 27 | Woodanilling Road Board | 1927-28 |
| Patterson | W. L. | - | B.S.A. 3½ H.P. Motorcycle | K 7 | Kalgoorlie Road Board | 1919 |
| Patterson | Wm. | Meekatharra | Dodge 20 H.P. | MK 22 | Meekatharra Road Board | 1919 |
| Patterson & Co | - | William Street, Perth | Dealers | 20114 | Metro Dealers Car | 1927-28 |
| Patterson & Co Ltd | - | E. S. & A. Bank Chambers, Perth | Dodge | 14730 | Metro Private Car | 1927-28 |
| Patterson & Landwehr | - | - | Ford Truck | DK ● 23 | Drakesbrook Road Board | 1926-27 |
| Pattinson | A. V. | Fitzgerald Street, Northam | Ford | N 69 | Northam Municipality | 1923-24 |
| Pattinson | A. V. | Fitzgerald Street | Ford | N 69 | Northam Municipality | 1924-25 |
| Pattinson | A. V. | Fitzgerald Street | Ford | N 69 | Northam Municipality | 1925-26 |
| Pattinson | A. V. | Fitzgerald Street | Ford Truck | N 69 | Northam Municipality | 1927-28 |
| Pattison | A. V. | Fitzgerald Street | Ford | N 69 | Northam Municipality | 1926-27 |
| Patton | J. F. | Beverley | Chevrolet | BE ● 130 | Beverley Road Board | 1923-24 |
| Patton | M. | Yorkrakine | Ford | WM ● 4 | Wyalkatchem Road Board | 1922-23 |
| Patton | M. | Coorow | Ford Truck | CA ● 108 | Carnamah Road Board | 1926-27 |
| Patton | M. | Coorow | Ford Truck | CA ● 108 | Carnamah Road Board | 1927-28 |
| Patton | Mrs I. | Coorow | Dodge | CA ● 47 | Carnamah Road Board | 1925-26 |
| Patton | Mrs I. | Coorow | Dodge | CA ● 47 | Carnamah Road Board | 1926-27 |
| Patton | Mrs I. | Coorow | Dodge | CA ● 47 | Carnamah Road Board | 1927-28 |
| Patton | S. N. | 45 John Street, Midland Junction | Ford | 12007 | Metro Private Car | 1926-27 |
| Patton | S. N. | 45 John Street, Midland Junction | Ford | 12007 | Metro Private Car | 1927-28 |
| Paul | A. | Harvey | B.S.A. 3½ H.P. Motorcycle | H ● 17 | Harvey Road Board | 1917-18 |
| Paul | A. | Harvey | B.S.A.3½ H.P. Motorcycle | H ● 17 | Harvey Road Board | 1919 |
| Paul | A. | Harvey | Essex | H ● 22 | Harvey Road Board | 1925-26 |
| Paul | A. | Harvey | Essex | H ● 22 | Harvey Road Board | 1926-27 |
| Paul | A. | Coolgardie | Chevrolet Truck | CG ● 56 | Coolgardie Road Board | 1927-28 |
| Paul | A. H. | 15 Mabel Street, North Perth | West 1½ H.P. | P 994 | Perth Municipality | 1919 |
| Paul | J. | Meekatharra | Dodge 20 H.P. | Not Regtd ● | Meekatharra Roads Borad | 1916 |
| Paul | J. | 146 Wittenoom Street | Excelsior 2½ H.P. Motorcycle | P 1120 | Perth Municipality | 1919 |
| Paul & Radford | - | Merriden | Reo Truck | MD ● 181 | Merredin Road Board | 1925-26 |
| Paulett | J. W. S. | West Road, Bassendean | Rugby | 6547 | Metro Private Car | 1926-27 |
| Paulett | J. W. S. | West Road, Bassendean | Rugby | 6547 | Metro Private Car | 1927-28 |
| Pauley | E. | Boulder | Studebaker 15-20 H.P. | BMC 8 | Boulder Municipality | 1915 |
