| Piesse | Cecil | Le Page's, Katanning | 0PK | 1924 |
| Piesse | Clarence H. | Wangling, Arthur R. | 1XP | 1924 |
| Piesse | Ernest A. | Minnie Creek, Carnarvon | E5P | 1924 |
| Piesse | Est. of late G. A. W. | Tillellan and Koobadong, Wagin | O7O and 52F, 11B | 1962 |
| Piesse | Exors. F. H. | Riverdale, Ganawarra, Kobellya, Katanning | 2PZ | 1924 |
| Piesse | F. & C. | Katanning and Kwobrup | PX7 | 1924 |
| Piesse | F. H. | Riverdale, Katanning | PZ7 | 1924 |
| Piesse | F. H. | | 2PZ and 54F, 8B | 1962 |
| Piesse | Frank E. | Bromley, East Wagin | TC3 | 1924 |
| Piesse | H. V. | Kattanning Farm, Kattanning | 3PZ | 1912 |
| Piesse | H. V. | Katanning Farm (Katanning), Quanandrup, Halfmoon, Braeside (Kojonup) | 3PZ | 1924 |
| Piesse | I. L. & M. | Vealing, Wagin | P7X and 19B, 11E | 1962 |
| Piesse | L. H. | Sarnia, Wagin | X7P and 19B, 103E | 1962 |
| Piesse | T. E. | Twin Creek, Ashburton River | P4W | 1912 |
| Piesse | Wm. John | Prosprous Estate, Near Wagin | P7X | 1912 |
| Piesse | Wm. John | Vealing, Wagin | P7X | 1924 |
| Piesse & Beddall | - | Rocky Pool, Wagin W. | PX6 | 1924 |
| Piesse & Co. | M. C. | Cintramia, Wagin | SS9 and 39C, 3A | 1962 |
| Piesse & Maguire | - | Quanandrup, Halfmoon, Braeside, Kojonup | CJ2 | 1912 |
| Piesse & Maguire | - | Twin Creek, Ashburton River | CJ2 | 1924 |
| Piesse & Maguire | - | Turee Creek, Meekatharra | CJ2 and 11C, 11E | 1962 |
| Piesse & Yates | - | Nayliring, Barrton | NN7 | 1924 |
| Piesse Bros. | - | Arthur River and Beaufort, Arthur River | O7O | 1912 |
| Piesse Bros. | - | Arthur River and Beaufort, Arthur River | O7O | 1924 |
| Pietroboni | D. | Golden Flat, Loc. 24, Greenbushes | DP0 | 1962 |
| Pietsch | G. | Glettkau, Walpole | GP3 and 84D, 71E | 1962 |
| Piferra | Jos. | Wonnerup | 3PF | 1924 |
| Piggin | Ernest E. | Loc. 15682, Trayning | 4PE | 1924 |
| Piggin | J. E. P. & H. | 5687, 11873, Trayning | J0P and 7B, 41E | 1962 |
| Piggin | James | Lots 15687, 11873, Trayning, via Dowerin | ZP1 | 1924 |
| Piggin | R. H. | 18616, 21379, 1244, 8, 12460, 18695 Hill Grove Farm, South Kumminin | RP2 and 57F, 37B | 1962 |
| Piggni | H. S. | Etna Farm, Trayning | HQ3 | 1924 |
| Piggott | A. C. | Avon Loc. 15625, Trayning | 7AO | 1924 |
| Piggott | A. M. | Vealing, Wagin | 3SP | 1912 |
| Piggott | A. M. | Torbay | 3SP | 1924 |
| Piggott | A. M. | Waterloo | Y7P | 1924 |
| Piggott | Annie | Killarney, Manjimup | P0A | 1924 |
| Piggott | Ben | Torbay | PP7 | 1912 |
| Piggott | Ben. | Spring Hill, Bunbury | PP7 | 1924 |
| Piggott | C. R. | Thurloo, Busselton | 5NJ and 15C, 22A | 1962 |
| Piggott | Charlotte | Spring Hill, Bunbury | 0CP | 1912 |
| Piggott | Charlotte | Spring Hill, Bunbury | 0CP | 1924 |
| Piggott | F. C. | Woodville, Manjimup | 6OU | 1924 |
| Piggott | H. | Spring Hill, Bunbury | 4PH | 1912 |
| Piggott | H. | Roseville, Brunswick Junctioin | 4PH | 1924 |
| Piggott | J. J. | 159-60,174-41, Harvey | 1JP and 4B, 50A | 1962 |
| Piggott | James | Block No. 2976, Nelson Loc., Warren River, Manjimup | 1QY | 1925 |
| Piggott | John | Roseville, Brunswick | P6J | 1912 |
| Piggott | John Muir | Block 296 Sussex | 3PJ | 1912 |
| Piggott | Joseph J. | Loc. 182, Hay River | 1JP | 1912 |
