| Darlington | W. H. & M. | Delamere, Shackleton | 4WD and 119B, 10A | 1962 |
| Darlington & Hawley | - | Callawa, Marble Bar | D3Q | 1925 |
| Darlington Vineyards Co. | - | Greenmount Loc. 34, Swan Locs. 952, 953 | DV2 | 1912 |
| Darlington Vineyards Co. | - | Greenmount Loc. 34, Swan Locs. 952, 953, Darlington | DV2 | 1924 |
| Darlot Bros. | - | Billabong, via Murgoo | A1D | 1924 |
| Darlot Bros. | - | Byro Station, via Yalgoo | JN6 | 1924 |
| Darlot Bros. Pty. Ltd. | - | Byro Station and Scoops, Mullewa & Mingenew | LU0 and 10B, 112A | 1962 |
| Darmoboy | Michl. | Burbanks | 2MD | 1912 |
| Darmodoy | Michael | Burbanks | 2MD | 1924 |
| Darnell | H. | Loc. 1756 & Loc. 4209, Rosa Brook | 5DA and 18B, 107E | 1962 |
| Darnell Bros. | - | Rosella, Rosa Brook | 6DW | 1962 |
| Darnley | Harry | Plantagenet Loc. 3298, Denmark | QF5 | 1925 |
| Daroh | Thos. R. | Millbank, Moore River | T2D | 1912 |
| Darragh | P. V. | Locs. 7618-9, 7129, 5198, 7433, 12845, 6006, 7133, 5324, Wyening | ED9 and 13B, 71A | 1962 |
| Darragh | Solomon M. | Block 401, Denmark | D9X | 1924 |
| Darragh | T. | Brookside, Jennacubbine | JL5 and 38A, 2C | 1962 |
| Darrell & Sons | E. | perrinvale, Harris River, Collie | 1VD | 1962 |
| Darrell & Sons | Ernest | Perrinvale, Harris River, via Collie | 1VD | 1924 |
| Darrington | K. J. | Nelson 7961, Manjimup | K1D | 1962 |
| Darroch | Hector | Brookhampton | K5D | 1924 |
| Dart | A. T. | Allandale, Dumbleyung | 3LN and 67A, 49B | 1962 |
| Dart | E. H. | Hazeldene, Cuballing | D8E and 113A, 42B | 1962 |
| Dart | Joseph | Rockdale, Cuballing | 4DT | 1924 |
| Dart | Matthew | Luckworthy, Dumbleying | 3ND | 1924 |
| Dart | P. E. | Lackworthy, Dumbleyung | 3ND and 22B, 7A | 1962 |
| Dartmoor Pastoral Co. | - | 4991, 4995-6-7-8, Geraldton | 7BM and 111A, 35B | 1962 |
| Dasborough | H. R. & L. N. | Avon 1953, Toodyay | PR3 and 21C, 14A | 1962 |
| Dasborough & Co. | S. C. B. | Suncalpara, Narrikup | S7D and 51F 50D | 1962 |
| Daubney | E. N. | Locs. 10338, Northcliffe | Y3F | 1962 |
| Daubney | J. R. | Locs 10024-5-6, Northcliffe | D4J | 1962 |
| Daunt | W. P. | Irwin River, Irwin | 1PD | 1912 |
| Daunt | W. P. | Irwin River, Irwin | 1PD | 1924 |
| Davenport | A. F. | Geraldton | 5XD | 1924 |
| Davenport | A. F. | 114 Fitzgerald St. Geraldton | 5XD | 1962 |
| Davenport | C. J. & W. H. | The Grange, Katanning | E9D | 1912 |
| Davenport | C. J. & W. H. | The Grange, Katanning | E9D | 1924 |
| Davenport | J. H. | Block 45, Yandanooka | X4D | 1924 |
| Davenport | R. A. | 19774-6, 23814, Bullaring | RD2 and 37B, 5A | 1962 |
| Davenport | R. N. | Devereux, Boyanup | VD6 | 1912 |
| Davenport | R. N. | Devereux, Boyanup | VD6 | 1924 |
| Davenport | W. H. | Roleystone | D7H | 1928 |
| Davenport Bros. | - | Tweedside, Moodiarup, via Wagin | DZ1 | 1924 |
| Davern | G. E. | Homestead, Preston | G3M | 1912 |
| Davern | G. E. | Homestead, Preston | G3M | 1924 |
| Davern | G. E. (Mrs) | Apelthorpe, Ravenswood, via Pinjarra | K7D and 44D, 32E | 1962 |
| Davey | A. | Clar Innes, Yuna | 5DA | 1924 |
| Davey | Albert | Falls Farm, Serpentine | A1D | 1928 |
| Davey | Alfred H. | Miner's Homestead Lease 209,, Kookynie | A5D | 1927 |
| Davey | Arnold L. | Wattening via Toodyay | L0D | 1928 |
| Davey | C. W. | Arthur River | CD2 | 1912 |
