| Thomson | J. Y. | Woodperry, Donnybrook | JY4 and 14C, 112A | 1962 |
| Thomson | James | Tammaville, Wagin | MT3 | 1924 |
| Thomson | James G. | Wood Perry Farm, Donnybrook | XT7 | 1924 |
| Thomson | John | The Grange, William Bay, via Denmark | T5N | 1924 |
| Thomson | John Chas. | Gladwyn Farm, Georgina | J3Z | 1924 |
| Thomson | K. M. | Brookhampton, Donnybrook | 7KT and 49D, 44E | 1962 |
| Thomson | L. H. | Well. Loc. 729, Donnybrook | 4QE | 1924 |
| Thomson | May | Roebank, Bridgetown | ZT0 | 1924 |
| Thomson | P. A. | Warren Point, Moora | AO2 | 1962 |
| Thomson | R. | Eldrene, Georgina Landing | RT5 | 1924 |
| Thomson | R. | Blocks 22171/55, 6788/56, Kwolyin | RT7 | 1924 |
| Thomson | R. & V. C. | Myrtle Valley, Maya | RV0 | 1924 |
| Thomson | T. H. | Wellington Loc. 729, Donnybrook | 4QE | 1924 |
| Thomson | W. | Butcher, South Perth | WT0 | 1962 |
| Thomson | W. A. | Loc. 713, 525, Cookernup | TU6 | 1924 |
| Thomson | W. H. | Blocks 9170, 12619, 12620, Tellenning, via Quairading | T5W | 1924 |
| Thomson | W. J. | 13370-68 Avon Locs. 17271, 12578, 11272, 11342-3-4, Tammin | T4U and 33B, 104E | 1962 |
| Thomson | Wm. | Farm, Nyabing | VT4 | 1924 |
| Thomson & Brown | Mary & Geo. | Avon Locs. 11617, etc., Tilenning, via Quairading | 1QT | 1924 |
| Thomson & Co. | F. J. | Gascoyne House, Cranbrook | P0G and 28B, 40E | 1962 |
| Thomson & Co. | H. | Kunmallup, Woodanilling | 1HT and 16B, 17A | 1962 |
| Thomson & Keay | Jane F. & Robert S. | Anster, Marchagee, Midland Railway | AR2 | 1928 |
| Thomson & Son | G. C. | Keelocking Avon 2303, Pingelly | C0T and 10B, 28A | 1962 |
| Thomson & Son | R. J. | Nosinot, Cunderdin | 8TJ and 45B, 108A | 1962 |
| Thomson & Woolley | - | Block 7625, Dangin | P2T | 1924 |
| Thomson Bros. | - | 1772, 3739, 7396, 4456, 3776, 4455, Pemberton | DT1 and 51F, 32C | 1962 |
| Thomson Bros. | - | Moogooree Station, Carnarvon | H1H and 1C, 12E | 1962 |
| Thomspon | A. G. | Hither Green, Loc. 18, 1516, Busselton | Y0P | 1962 |
| Thomspon | Alice May | 26 Barton Street, E. Kalgoorlie | YT2 | 1924 |
| Thorbjornsen | V. | Ptn. Avon P5, 34-6 Lots 1-22 inc. and 162, Northam | N0G and 116B, 9E | 1962 |
| Thorn | A. W. | Jandakot Agricultural Area Part 85, Kelmscott | AT8 | 1962 |
| Thorn | A.P. | Wydgee, Mt. Magnet | TSW | 1912 |
| Thorn | Albert | Gumborrie, York | O5T | 1924 |
| Thorn | C. M. | Langlands, York | CT9 and 4C, 44A | 1962 |
| Thorn | Chas. Francis | Hillside Dairy, Coolgardie | O4B | 1924 |
| Thorn | D. W. | Thorndale and Wattlevale, North Dandalup | QX6 and 13C, 9E | 1962 |
| Thorn | F. C. | Dooen Langi, Kojonup | 3FT and 21B, 67E | 1962 |
| Thorn | F. E. | Mundaring Lot 1192, Mundaring | FE6 and 38B, 106E | 1962 |
| Thorn | F. T. | Hillside Dairy, Coolgardie | FT9 | 1912 |
| Thorn | F. T. | Hillside Dairy, Coolgardie | FT9 | 1924 |
| Thorn | Herbert | Thorndale, North Dandalup | QX6 | 1925 |
| Thorn | J. A. | Overland Dairy, Kalgoorlie | O4B and 111D, 22E | 1962 |
| Thorn | J. C. | Avon 15918, Bruce Rock | J1T and 46D, 50E | 1962 |
| Thorn | J. F. | Ranchita, Millendon | R9N | 1962 |
| Thorn | Percival P. | Kenton Vale, Kojonup | T3N | 1928 |
| Thorn | R. P. & C. M. | Yaralla, Kojonup | T5N and 29B, 105A | 1962 |
| Thorn | T. H. | 15898, 23211, Bruce Rock | 0RT and 20B, 32A | 1962 |
| Thorn & Co. | K. R. | Te'Hoe, Tambellup | K6T and 26B, 32E | 1962 |
| Thorn & Rakich | - | Hay Loc. 1048 and 929, Rocky Gully | RT2 and 9B, 47E | 1962 |
| Thorn & Son | P. P. | Loc. 96 and 267, 4419, Kojonup and Albany | T3N and 11B, 36E | 1962 |
