| Dower | Samuel | Ebsworth Street, Mt. Lawley | 7SD | 1912 |
| Dower | Samuel | Ebsworth Street, Mt. Lawley | 7SD | 1924 |
| Dower | W. K. | Avon Locs. 18848 & 19694-7-8, Kulin | KD5 and 32D, 71E | 1962 |
| Dowie | D. | Michalrup Loc. 2706, Boyup Brook | DD6 and 20B, 15E | 1962 |
| Dowie | David | Bull's Head, Upper Blackwood | DD6 | 1912 |
| Dowie | David | Bulls Head, Upper Black | DD6 | 1924 |
| Dowie | J. E. | Dalwallinu | OD8 | 1924 |
| Dowie | J. O. & D. M. | Loc. 1910-1911, Dalwallinu | OD8 and 31D, 40E | 1962 |
| Dowie | John Muir | Ashfield Farm, Wubin | K5X | 1925 |
| Dowley | J. E. P. | Golden Gleam, Chittering, via Muchea | P3D and 46A, 45C | 1962 |
| Dowley | Jas. E. | Mayfield, Greenbushes | E3D | 1912 |
| Dowley | Jas. E. | Mayfield, Greenbushes | E3D | 1924 |
| Dowling | G. G. | Clonmel, Rocky Gully, via Mt. Barker | 0XD and 39E, 39D | 1962 |
| Dowling | Jeanie | Wongee, Popanyinning | JD1 | 1927 |
| Dowling | R. W. | Wongee, Popanyinning | JD1 and 109B, 33A | 1962 |
| Dowling | S. T. | Panta Downs, Derby | ST2 and 114A, 50B | 1962 |
| Dowling & Haydock | - | Marramucking Farm, East Narrogin | X5D | 1924 |
| Down | K. P & H. M. | 3499 and 3643 (Melb.), Bindi Bindi | KD6 and 48D, 104E | 1962 |
| Downard | T. G. | Coudon | X0P | 1962 |
| Downe | L. F. | Glencairn, Margaret River | GN1 and 23E, 14D | 1962 |
| Downer | H. T. C. | Wattle Park, Perenjori | OD4 and 16C, 25E | 1962 |
| Downer | Henry W. | Loc. 4785, Perenjori | OD4 | 1924 |
| Downer | John H. | Morialta, Broome Hill East | 9DR | 1924 |
| Downer | W. S. C. | Perenjori Park, Perenjori | D0E and 18B, 119E | 1962 |
| Downer & Downer | - | Monalta, Broomehill | 9DR and 5B, 112E | 1962 |
| Downes | - | Green Grove, Dongara | DT3 | 1924 |
| Downes | Arhur | Yandanooka | X5T | 1924 |
| Downes | E. | Eneahha, Arrino | TX1 | 1912 |
| Downes | E. | Eucahha, Arrino | TX1 | 1924 |
| Downes | E. A. | Green Grove, Dongarra | 5AD | 1912 |
| Downes | E. A. | Green Grove, Dongara | 5AD | 1924 |
| Downes | E. W. G. | Lot 877, Albany | 0FW and 3C, 111E | 1962 |
| Downes | F. C. L. | Meadow Brook, Yandanooka | FD1 and 6B, 17E | 1962 |
| Downes | G. | Nargko, Dongarra | GD2 | 1912 |
| Downes | G. | Nargko, Dongara | GD2 | 1924 |
| Downes | H. J. | Fairfield 5015-4073, Nolba | U2P and 29D, 12E | 1962 |
| Downes | J. H. | Meadow Brook, Yandanooka | DT3 and 6B, 4E | 1962 |
| Downes | R. V. | Green Grove, Dongara | 5AD and 20A, 11C | 1962 |
| Downes | Reginald H. | Yuba, No. 3 Loc. 5006, Nolba | D9R | 1924 |
| Downes | Wm. | Greengrove, Dongarra | DT3 | 1912 |
| Downes & Son | - | Meadow Brook, Yandanooka | 7ZU and 6C, 112E | 1962 |
| Downey | Eusace | Burlong, Northam | ED4 | 1924 |
| Downey | Eustace | Burlong, Northam | ED4 | 1912 |
| Downie | G. F. | Wins. Loc. 7302, 7621, Kirk's Rock | D5G | 1924 |
| Downie | I. & R. M. | Kenwick, Koorda | 7DK and 49D, 108E | 1962 |
| Downie | R. & C. M. | Chowns, Koorda | RD6 and 50D, 29E | 1962 |
| Downie & Sons | G. F. | Hendon Kirks Rock, Yealering | D5G and 2C, 109E | 1962 |
| Downing | G. E. | Locs. 18603-8, 19669, 21060, Avon, Corrigin | 2ED and 23A, 48B | 1962 |
| Downing | Henry P. | Boyacarring, West Dale, via Beverley | 8RB | 1924 |
| Downing | Henry P. | Westdale, via Beverley | D7O | 1924 |
