| Depot Springs Ltd. | - | Depot Spring Station, Lawlers | DP2 | 1928 |
| Depot Springs Pty. Ltd. | - | Depot Springs, Fogbarthorpe & Dalgaranga, Sandstone, Toodyay & Yalgoo | DP2 and 22C, 41A | 1962 |
| Derbyshire | Walter | Blackheath, Wongan | WD0 | 1912 |
| Dermer | W. M. C. | Lot 1968 Swan Loc., Waneroo | WD5 and 23B, 116E | 1962 |
| Dermer | Wm. T. | Wubin | N3D | 1924 |
| Dermody | G. | Oakbank, Wagin | D6G and 103E, 37D | 1962 |
| Dermody | W. E. | 20081, 20019, Shackleton | WD3 and 11B, 17E | 1962 |
| Deroca | Ida K | 8-mile Water, Dongarra | CD7 | 1912 |
| Deroca | Ida K. | 8-Mile Water, Dongarra | CD7 | 1924 |
| Derrick | Geo. Henry | Glenedin, Jibberding | G6D | 1924 |
| DeRusett | W. H. & N. D. | Nelson Loc. 888, Greenbushes | D4Q | 1924 |
| Desailly | Arthur Louis | Commonage, Sandstone | 1DY | 1924 |
| Desailly | G. B. | Dulverton, Narrogin | E5D | 1912 |
| Desailly | G. B. | Dulverton, Narrogin | E5D | 1924 |
| Deschamp | August Lewis | Part Swan Loc. 16, Swan View | SH0 | 1924 |
| Deschamp | E. J. | Brooklyn, Serpentine | D9E | 1924 |
| Desmond | D. | Greenfield, Walkaway | 3DL | 1924 |
| Desmond | Est. of A. J. | Mt. Hill, Walkaway | 3DD and 11B, 23E | 1962 |
| Desmond | G. | Blocks 6786, 5735, Mullewa | 3RD and 14A, 12B | 1962 |
| Desmond | J. jun. | Mt. Hill Spring, Walkaway | L6D | 1924 |
| Desmond | James | Desmond's Farm, Walkaway | 3DD | 1912 |
| Desmond | James | Desmond's Farm, Walkaway | 3DD | 1924 |
| Desmond | M. F. | Rose Hill, Walkaway | 7ND | 1924 |
| Desmond | N. P. | Greenfield, Walkaway | 3DL and 84B, 8E | 1962 |
| Desmond | P. & A. | Walkaway | 3DD | 1925 |
| Desmond | R. | Greenough, Walkaway | 3RD | 1924 |
| Desmond | R. | Kaluwiri, Indarra | 7TY and 4C, 27E | 1962 |
| Desmond | T. W. | Mt. Hill Flat, Walkaway | T5D | 1924 |
| Despeisses | A. | Santa Rosa, Guildford | YY7 | 1924 |
| Dessewffy | M. K. | Nelson 8512, 5489,Manjimup | MK9 and 47E, 80D | 1962 |
| Destre | P. H. | Cherrydale, Rosa Glen, via Margaret River | PD7 | 1962 |
| Deutscher | A. E. | Camballan, Boyup Brook | AD1 and 46B, 22A | 1962 |
| Devane | D. J. | Culburra Farm, Perilya, Southern Cross | DD9 and 43C, 45E | 1962 |
| Devenish | A. S. | Carnarvon | 0NZ | 1924 |
| Devenish | Edwd. C. | Commonage, Carnarvon | 1SW | 1912 |
| Devenish | Edwd. C. | Commonage, Carnarvon | 1SW | 1924 |
| Devenish | Mrs. A. M. | Commonage, Carnarvon | MS7 | 1912 |
| Devenish & Sons | A. W. | Stonehaven, Cunderdin | AD2 and 4B, 37E | 1962 |
| Dever | L. C. F. | Yorkrakine | XD8 | 1924 |
| Devereux | A. J. | Lilydale, Kellerberrin | AD6 and 43D, 32E | 1962 |
| Devereux | Alfred | Hurley Park Estate, West Swan | XP3 | 1924 |
| Devereux | Wm. Geo. | Pyrton Lot 2983, Pyrton, East Guildford | 2XD | 1924 |
| Devereux & Co. | K. N. | Loc. 4516 & 3574 Well., Darkan | H4D and 5D, 48E | 1962 |
| Devine | Geo. | Wanara Station, Wanara, via Perenjori | DV3 | 1924 |
| Devine | H. M. | Carberry, Gosnells | DV9 | 1962 |
| Devine | Herbert M. | Commonage, Malcolm | DV9 | 1924 |
| Devine | James | Grove Farm Dairy, Belmont | YJ0 | 1924 |
| Devine | M. | Tyrone, Cordering | 5JD and 16C, 30E | 1962 |
| Devine | S. & N. | Bibra Lake, Willagee | N0D and 108B, 104E | 1962 |
| Devitt | W. L. | Coralling, Williams | W5L | 1912 |
