| Dennis | W. | Carinya, Narrikup, Albany | DN8 and 48A, 47B | 1962 |
| Dennis | Wm. Geo. | Cross Valley, Wongamine | D9V | 1924 |
| Dennis & Co. | G. F. | Mabo & Springs, Cunderdin, Mt. Barker | OE6 and 6A, 10B | 1962 |
| Dennison | John Nixon | Kellerberrin | N8D | 1924 |
| Denny | Thos. Henry | Block 90, Jandakot | 3TD | 1912 |
| Denny | Thos. Hy. | Jandakot | 3TD | 1924 |
| Denslow | H. L. | The Wattles, Carnamah | XD5 | 1924 |
| Denson | Herbert Reg. | Bythorne, Dardanup | V4G | 1924 |
| Dent | A. J. F. | Lot M 861 on plan 3150 Swan Loc. 1352, E. Bullsbrook | J8D and 32B, 117E | 1962 |
| Dent | C. & I. | Dal-Kim, Yornaning | CD7 and 14C, 42E | 1962 |
| Dent | C. F. & I. V. | Locs. 253, 192, 198, 717, 718, 1382, AA 11, AA 12, (Brookdale), Brookdale | 1CD and 24A, 28B | 1962 |
| Dent | Fredk. Thos. | Grassmere Farm, via York | 2QJ | 1924 |
| Dent | G. P. | Trafalga, Jacob's Well | GD4 | 1912 |
| Dent | G. P. | Trafalgar, Jacobs Well | GD4 | 1924 |
| Dent | J. B. | 196 Ridgelands, Esperance | R6D and 11B, 49E | 1962 |
| Dent | P. W. | The Retreat, Boyup Brook | DP5 | 1924 |
| Denton | Chas. | Forest Glen, Woodanilling | CD8 | 1912 |
| Denton | Chas. | Forest Glen, Woodanilling | CD8 | 1924 |
| Denton | S. C. M. & K. L. | Tabba Tabba Station, Port hedland | 8CB and 42D, 50E | 1962 |
| Denton | T. J. | Monjerducking, Mt. Kokeby | PW8 and 71C, 10A | 1962 |
| Denton Bros. | - | Oak Dale Farm, Berkshire | DN8 | 1924 |
| Department of Agriculture | - | Light lands Farm, Wongan Hills | WAF | 1925 |
| Department of Agriculture | - | State Farm, Avondale | AAF | 1925 |
| Department of Agriculture | - | Agricultural College, Muresk | MAC | 1925 |
| Department of Agriculture | - | State Farm, Salmon Gums | S/|\F | 1927 |
| Department of Agriculture | - | Avondale Research Station, Beverley | A/|\F and 46D, 46E | 1962 |
| Department of Agriculture | - | Abydos Station, Port Hedland | A/|\W and 46C, 14A | 1962 |
| Department of Agriculture | - | Bramley Research Station, Cowaramup | B/|\S | 1962 |
| Department of Agriculture | - | Chapman Research Station, Geraldton | C/|\N and 46B, 46E | 1962 |
| Department of Agriculture | - | State Wide, Western Australia | D/|\A and 46D, 47E | 1962 |
| Department of Agriculture | - | Denmark Research Station, Denmark | D/|\F | 1962 |
| Department of Agriculture | - | Esperance Plains Research Station, Gibson | E/|\S and 44C, 44E | 1962 |
| Department of Agriculture | - | Gascoyne Research Station, Carnarvon | G/|\R and 46C, 44A | 1962 |
| Department of Agriculture | - | Kimberley Research Station, via Wyndham | K/|\R | 1962 |
| Department of Agriculture | - | Agricultural College, Muresk | M/|\C and 46B, 46A | 1962 |
| Department of Agriculture | - | Newdegate Pilot Farm, Newdegate | N/|\F and 18D, 4E | 1962 |
| Department of Agriculture | - | Merredin Research Station, Merredin | N/|\N and 107A, 107B | 1962 |
| Department of Agriculture | - | Badgingarra Research Station, Badgingarra | R/|\B and 117B, 117E | 1962 |
| Department of Agriculture | - | Salmon Gums Research Station, Salmon | S/|\F and 46B, 11A | 1962 |
| Department of Agriculture | - | Wongan Hills Research Station, Wongan Hills | W/|\F and 46C, 46A | 1962 |
| Department of Native Welfare | - | Riverdale Station and Yandeyarra Station, Nullagine and Porthedland | J7A and 22C, 17E | 1962 |
| Department of Public Health | - | Leprosarwer, Derby | G/|\L and 119D, 46E | 1962 |
| Department Repatriation | - | Anzac Farm, Goomalling Road, Northam | VR5 | 1924 |
| Depiazzi | Bernardo | Fair View Farm, Waterloo | BD1 | 1926 |
| Depiazzi | J. G. | Fairview Farm, Waterloo | BD1 and 19E, 1C | 1962 |
| Depiazzi | J. P. | Iona, Dardanup | PD3 | 1962 |
| Depiazzi | T. J. | Silver Spring, Dardanup | T6D and 44A, 1C | 1962 |
| Depiazzi | V. A. & L. M. | Well. Loc. Lot 11 Chelmsford Farm, Waterloo | VL2 and 113D, 38E | 1962 |
| DePledge | Thos. | Globe Hill, Onslow | D7P | 1924 |
| DePledge | Thos. | Yannery, Onslow | DE1 | 1924 |
