| Dickson | P. | Rocks Hill, Carbarup | Z1W and 23A, 27B | 1962 |
| Dickson | T. | Biddellia, Nannup | DX1 | 1912 |
| Dickson | T. S. | Black Point, Bonberra Homestead, Nannup | UZ0 and 115B, 18A | 1962 |
| Dickson | T. W. | Biddellia, Nannup | DX1 | 1924 |
| Dickson | T. W. T. | Black Point, Bonberra, Nannup | 5YE and 18B, 13E | 1962 |
| Dickson | Thos. | Biddellia, Wobbleup | UZ0 | 1924 |
| Dickson | W. B. | Biddellia, Wobbleup | Z3U | 1924 |
| Dickson | W. B. | Biddelia, Wobbleup, Nannup | Z3U and 115D, 18E | 1962 |
| Dickson | Wm. | Janesbrook, Midland Junction | 8WD | 1912 |
| Dickson | Wm. | Janesbrook, Midland Junction | 8WD | 1924 |
| Didcock | J. & W. | Blocks 14816 & 15112, Mt. Marshall | D0U | 1924 |
| Didcott | Mrs C. | Dairy Farm, Maylands | 6CQ | 1924 |
| Diggins | W. R. | Commonage, Cuddingwarra | WD6 | 1912 |
| Diggins | W. R. | Commonage, Cuddingwarra | WD6 | 1924 |
| Diggles | J. | Locs. 14919 & 14920, Bilbarin | 6KD | 1924 |
| Diggles | Thos. | Wilton, Yorkrakine | T7D | 1912 |
| Diggles | Thos. | Wilton, Yorkrakine | T7D | 1924 |
| Digiuseppe | T. | Swan Loc. 2, Belmont | 7TD and 13C, 3E | 1962 |
| Dilkes | E. W. | Sherwood, Bridgetown | WD4 | 1962 |
| Dilley | A. F. | W. S. L. S. A 657, Pinjarra | D7Y and 71B, 50A | 1962 |
| Dilley | F. J. | Bendigup, Capel | F2D | 1912 |
| Dilley | F. J. | Bendigup, Capel | F2D | 1924 |
| Dilley | W. F. | Wel. Loc. 2548/9, Donnybrook | 4MQ and 102D, 31E | 1962 |
| Dillion | J. B. | Speewa Station, East Kimberley | J6D | 1912 |
| Dillion | John | Doocey Downs, Lake Darlot | XD7 | 1912 |
| Dillion | M. | St. George's Farm, Coolup | M2D | 1912 |
| Dillion | M. J. | Crooked Brook, Dardanup | DJ2 | 1912 |
| Dillistone | Arthur P. | Dindiloa, via Geraldton | DP3 | 1924 |
| Dillon | E. | Cremorne Dairy, Kalgoorlie | 7QD | 1924 |
| Dillon | F. A. | Peppermint Dell, Dardanup | L8D and 32A, 31B | 1962 |
| Dillon | J. B. | Speewa Station, East Kimberley | J6D | 1924 |
| Dillon | J. F. | Roe Loc. 474/701/702, Lake Biddy | 7JD and 107A, 40B | 1962 |
| Dillon | J. P. | Jamtree Valley. Corrigin | L2D and 9B, 20E | 1962 |
| Dillon | J. P. | 151 Spencer Street, S. Bunbury | PD3 | 1962 |
| Dillon | John | Moira, East Brookton | L2D | 1924 |
| Dillon | John | Commonage, Eileen Street, Bunbury | PD3 | 1924 |
| Dillon | Laura M. | Crooked Brook, Dardanup | L8D | 1924 |
| Dillon | M. | St. George's Farm, Coolup | M2D | 1924 |
| Dillon | M. | Kooroora, Manjimup | 6KQ and 48E, 84B | 1962 |
| Dillon | M. | 454, Newdegate | DM7 and 118E, 21C | 1962 |
| Dillon | M. | Clare, Lake Biddy | QE2 and 44A, 19C | 1962 |
| Dillon | M. J. | Crooked Brook, Dardanup | DJ2 | 1924 |
| Dillon | Michael | Roe Loc. 700, Newdegate | QE2 | 1924 |
| Dillon | P. | Olympic Park, Newdegate | V1E and 42B, 32E | 1962 |
| Dillon | T. A. | 8 George Street, Bunbury | 4YD | 1962 |
| Dillon | Thos. Arthur | George St. Dairy, Bunbury | 4YD | 1924 |
| Dillon | W. G. | Strathmore, Newdegate | 3WD and 37D, 67E | 1962 |
| Dillon & Pearce | - | Scotia Station, Scotia Siding via Kalgoorlie | D1P | 1928 |
| Dimasi | J. | Loc. 3012, 3014, Walsall | 1XD and 4A, 24B | 1962 |
| Dimer | F. | Nanabinia Station, Norseman | 5FD and 6C, 11E | 1962 |
