| Piper | J. H. | 32 Joseph St. Maylands | J1P | 1962 |
| Piper | L. J. & A. M. | Norwich, Asplin | D4D and 9D, 4E | 1962 |
| Piper | R. N. | Yallambee, Bindi Bindi | RP0 and 36B, 103A | 1962 |
| Pippen | Annie M. | Malie Brae, Nungarin | 3PN | 1924 |
| Pippin | Rebecca Jane, Mrs | Commonage, Coolgardie | 4PN | 1924 |
| Pirie | Robert | Edinu, Popanyinning | Q4P | 1925 |
| Piscioneri | D. | Wellington 1289, 3291, Donnybrook | DP6 | 1962 |
| Piscioneri | T. | 2922, Donnybrook | 8TP and 34B, 24E | 1962 |
| Pisconiri | I. & G. | Harvey, A.A. 31, Waroona | E0M and 25D, 116E | 1962 |
| Pitcher | Hilda | C. P. 2194, Pemberton, Big Brook | 8XP | 1924 |
| Pitcher | L. J. | 142 Carr St. West Perth | LP3 | 1962 |
| Pitchers | Jno. Southwell | Harvey Estate, Harvey | PJ2 | 1912 |
| Pitchers | Jno. Southwell | Marjidin Estate, Williams | PJ2 | 1924 |
| Pitchford | Charles H. | Loc. 11108, Nungarin | H4P | 1927 |
| Pitchford | Geo. F. | White Peak Station, near Geraldton | CP4 | 1924 |
| Pitman | E. T. | Karangateen, Corrigin | AT1 and 13B, 34E | 1962 |
| Pitman | J. H. A. | Donnybrook Hotel, Donnybrook | 5PJ | 1912 |
| Pitman | J. H. A. | Hill View Farm, Yalup Brook, Waroona | 5PJ | 1924 |
| Pitman | Saml. T. | Fromefield, Kunjin | S6P | 1924 |
| Pitman | W. J. | 30, Albany | 2WP and 56F, 102B | 1962 |
| Pitman | W. M. | Lot 283, 449, 203, 79 and Pt. 1236, Waroona | 7XP and 38C, 80E | 1962 |
| Pitt | F. J. | Goomarin Vale, Via Merredin | FP7 | 1962 |
| Pitt | Frederick J. | Goomarin Vale, via Merredin | FP7 | 1927 |
| Pitt | Geo. Henry | Harvey Area Lot 143, Wagerup | PQ3 | 1924 |
| Pitt | Henry | Lot 609, Denmark | NP4 | 1924 |
| Pitt | L. R. P. | Lots 608-9, Denmark | NP4 and 43B, 108E | 1962 |
| Pitt | W. F. | Ivanhoe Farm, Merredin | P1T and 104D, 56F | 1962 |
| Pitt & Co. | F. A. | Fairlands, South Walgoolan | F1P and 14C, 67A | 1962 |
| Pittam | F. | Loc. 437, Mt. Shadforth, Denmark | F9P | 1962 |
| Pittam | R. & V. | Loc. 428-30-1, Mt Shadforth, Denmark | V6R | 1962 |
| Pittard | Albert W. D. | Werneth Farm, Box 69, Kulin | AP2 | 1927 |
| Pittard | J. D. | 14364, Kulin | 3JP and 13B, 103E | 1962 |
| Pittard | N. I. | Werneth Farm, Kulin | AP2 and 18B, 40E | 1962 |
| Pittaway | Wm. | Damboring | P8P | 1924 |
| Pittendreigh | Alex | Balgownie, Manjimup | PQ6 | 1924 |
| Pittendreigh Bros. | - | Balgownie, Manjimup | PQ6 and 3C, 12E | 1962 |
| Pittendrigh | Margaret | Donside, Manjimup | PD6 | 1924 |
| Pitter | W. | Edward Street, Osborne Park | 6PU | 1924 |
| Pittman | Geo. R. | Marjidin Estate, Williams | 2GP | 1912 |
| Pittman | Geo. R. | Donnybrook Hotel, Donnybrook | 2GP | 1924 |
| Pitts | D. J. | 343 Road Side, Busselton | M6P | 1962 |
| Pitts | David J. | Pennlands, Busselton | M6P | 1927 |
| Pitts | E. S. | Thurloo Farm, Yoongarillup, Via Busselton | 0JP | 1962 |
| Pitts | S. M. & E. J. | 1216, 1361, 370, Busselton | SM6 and 110B, 71E | 1962 |
| Pivac | I. | Nelson 618, Hester Siding | P1V | 1962 |
| Pizey Pty. Ltd. | J. C. | Wellington Locs. 1 48, Australind | JP5 and 107B, 116E | 1962 |
| Pizzino | V. | Locs. 1115,11181, 11199, Wanneroo and Nannup | V0P | 1962 |
| Place | E. & G | Yelki, Corrigin | WP2 and 15B, 4A | 1962 |
| Place | N. W. | Blantyne, Dowerin | 1NP and 19C, 27E | 1962 |
| Place | Wm. | Hill View Farm, Yalup Brook, Waroona | WP2 | 1912 |
