| Pickersgill | - | Kia 'Ora, Kurrenkutten | PG3 | 1924 |
| Pickersgill | A. M. | Nelson Loc. 107, Northcliffe | M8H and 22D, 103E | 1962 |
| Pickersgill | C. G. | Pickersgills, Magenup Road, Nannup | PK3 | 1962 |
| Pickersgill | H. N. | Paradise Valley, Thompsons Brook, Via Donnybrook | P6K and 9D, 41E | 1962 |
| Pickett | A. M. | Chittering Park, Lower Chittering, Via Bullsbrook | 7PS and 16C, 10E | 1962 |
| Pickett | Donald James | Wavelit Farm, P.O., Worsley | D6P | 1926 |
| Pickett | Geo. B | Spring Valley, Bullsbrook | 7PS | 1924 |
| Pickett | Geo. B. | Soring Valley, Bullsbrook | 7PS | 1912 |
| Pickett | N. J. | 1038, Hyden | NP3 and 46B, 47E | 1962 |
| Pickford | H. L. | Lots3508, 4696-7, Napier, Via Albany | L5P and 28B, 104A | 1962 |
| Pickles | W. | Craven Lea, Mt. Barker | P1W | 1912 |
| Pickles | W., | Craven Lea, Mt. Barker | P1W | 1924 |
| Pickles & Knowles | - | Blocks 10554, 10560, 10361, 15846, 18877, South Caroling | 2QU | 1912 |
| Pickles & Knowles | - | Blocks 10554, 10560, 10361, 15846, South Caroling | 2QU | 1924 |
| Pickles & Sons | W. | Craven Lea, Mt. Barker | P1W and 38C, 12E | 1962 |
| Pickup | Abraham | Burbanks Run, Burbanks | AP7 | 1912 |
| Pickup | Abraham | Burbanks Run, Burbanks | AP7 | 1924 |
| Picton-Warlow & Co. | Alick J. | Prospect, Kwolyin | P1W | 1927 |
| Pidgeon | Samuel | Uduc Junction, Harvey | SP1 | 1912 |
| Pidgeon | Samuel | Udnc Junction, Harvey | SP1 | 1924 |
| Pidgeon | Thomas | Yalgoo Commonage, Yalgoo | 4TT | 1912 |
| Pidgeon | Thos. | Yalgoo Commonage, Yalgoo | 4TT | 1924 |
| Pieper | Henry | Warrick, Cunderdin North | P9P | 1924 |
| Pierce | Chas. H. | His Majesty's Hotel, Fremantle | 4CP | 1912 |
| Pierce | Chas. H. | His Majesty's Hotel, Fremantle | 4CP | 1924 |
| Pierce | I. & E. M. | Loc. 9184, Lease 32973/55, Kukerin | 9KP | 1924 |
| Pierce | John | Nuley Park, Yelbeni | YP8 | 1924 |
| Pierce | William R. C. | Claymore, Swan Saw Mill, Claymore | WP0 | 1927 |
| Pierce & Cosgrave | - | Calerdon, Yelbeni | CY2 | 1924 |
| Pierce & Son | W. H. | Grange Farm, Hazelvale, Via Denmark | 2YG | 1962 |
| Piercey | A. M. (Mrs) | Marbelup, Vasse | J5N | 1962 |
| Piercey | J. W. | St. Annes, Latham | PY4 and 44D, 103E | 1962 |
| Piercey | S. R. | Mokine Park, Mokine | 7XJ | 1928 |
| Piercey & Co. | D. | Fitzgerald 417-8, 420-1, Circle Valley | D7P and 17C, 22A | 1962 |
| Piercey & Sons | G. | Lot 1357, 1036, 507-9, 520, 529, 1466, Speddingup, Via Coolgardie | G8P and 39D, 103E | 1962 |
| Piercy | R. R. | Lot 169, North Lake Road, Melville | 6RP and 48B, 20E | 1962 |
| Pierres | Vicomte de G. C. B. | Derdebin, Tammin | 2VP | 1924 |
| Pierres | Vte. De, R. M. & H. S. | Derdebin, Wyalkatchem | 2VP and 3B, 25E | 1962 |
| Piesse | A. E. | Langawierra, Kattaning and Rockcliffe, Kojonup | P1Z | 1912 |
| Piesse | A. E. | Langawierra (Katanning), Rockcliffe (Kojonup) | P1Z | 1924 |
| Piesse | A. J. & R. | Condining Hill, Piesseville | PJ6 and 12B, 115A | 1962 |
| Piesse | A. N. | Key Farm, Newcastle | 3AP | 1912 |
| Piesse | A. N. | Key Farm, Toodyay | 3AP | 1924 |
| Piesse | B. C. L. | Kooyong, Pinjarra | N0P and 18B, 39E | 1962 |
| Piesse | Bertram C. L. | Marmaling Farm, Wedgeearrup Rd., West Wagin | L4P | 1924 |
| Piesse | C. A. | Tillellan, Wagin | SS0 | 1912 |
| Piesse | C. A. | Tillellan (Wagin), Arthur Paddocks (Arthur River), Riverslea (Arthur R.) | SS0 | 1924 |
| Piesse | C. L. | Arthur Paddocks, Arthur River. Riverslea, Arthur River. Turee Creek, Ashburton River | KT1 | 1912 |
| Piesse | C. L. | Turee Creek, Ashburton R | KT1 | 1924 |
| Piesse | C. R. & P. | Wangeling, West Wagin | 1XP and 58F, 25D | 1962 |
