| Powell | A. | Holding, Albany | 9VP | 1924 |
| Powell | A. | Lot 952, Wellard | MJ3 and 108B, 14A | 1962 |
| Powell | A. C. | Hulongine, Goomalling | P4L | 1912 |
| Powell | A. C. | Hulongine, Goomalling | P4L | 1924 |
| Powell | A. G. | Chitternerup Kent 823, Borden | 4AP and 26B, 120E | 1962 |
| Powell | A. J. | Bimbadeen, Aldersyde | 5AP and 42D, 46E | 1962 |
| Powell | Abraham & Gladys | Edenhope, Morawa | PV0 | 1924 |
| Powell | B. | Kingsley Hills, Rocky Gully, via Mt. Barker | P9L and 42B, 114E | 1962 |
| Powell | B. D. | Woolakabin Park, Narrogin | 8PL and 8B, 114A | 1962 |
| Powell | C. R. & B. A. | Hillside Farm, Bruce Rock | C0P and 45D, 104E | 1962 |
| Powell | D. | Wyanewie, Wagin | 1DP | 1912 |
| Powell | D. | Wyanewie, Wagin | 1DP | 1924 |
| Powell | D. L. (Mrs) | Cloverdale, Narrogin | NP7 and 33C, 119A | 1962 |
| Powell | E. J. | 8284-5-6, 3402, 7335, Quairading | EP6 and 40D, 31E | 1962 |
| Powell | E. Jas. | Willow Farm, Goomalling | P0W | 1912 |
| Powell | E. Jas. | Willow Farm, Goomalling | P0W | 1924 |
| Powell | E. V. & D. E. | Hulongine, Oakleigh Farm, Goomalling | 1PX and 6D, 10E | 1962 |
| Powell | Ed. | Severn Grove, Beverley | EP8 | 1912 |
| Powell | Ed. | Severn Grove, Beverley | EP8 | 1924 |
| Powell | F. H. | No. 4519, Merkanooka | F8P | 1924 |
| Powell | F. R. | 841, 797, Nanga Brook, via Yarloop | XA3 | 1962 |
| Powell | Frederick | Nanga Brook | XA3 | 1924 |
| Powell | Geo. | Oakleigh, Northam | 1PX | 1912 |
| Powell | Geo. | Oakleigh, Northam | 1PX | 1924 |
| Powell | Geo. B. | Longfield, Dumbleyung | P9G | 1924 |
| Powell | Geo. Fredk. | Commanage, Coogee | FP7 | 1912 |
| Powell | Geo. Fredk. | Commonage, Coogee | FP7 | 1924 |
| Powell | H. | Blue Valley, Clackline | 6TP and 34C, 30E | 1962 |
| Powell | H. J. | Brighton Park, Tammin | 8PH | 1912 |
| Powell | H. J. | Brighton Park, Tammin | 8PH | 1924 |
| Powell | H. J. & M. | Nuora-Cowie, Wagin | Y0C and 10D, 39E | 1962 |
| Powell | Harriet | Serpentine Run, Hope Valley | 5HP | 1912 |
| Powell | Harriett | Serpentine Run, Hope Valley | 5HP | 1924 |
| Powell | Henry | Cullbana, Koojan | HP9 | 1912 |
| Powell | Henry | Cullbana, Koojan | HP9 | 1924 |
| Powell | Isaac | Wagelcurra, via Koojan | 1PO | 1924 |
| Powell | J. | Rokewood Farm, Merkanooka | XP8 | 1924 |
| Powell | J. D. | Sinindewah, Mullewa | 1XX | 1912 |
| Powell | J. D. | Sinidewah, Mullewa | 1XX | 1924 |
| Powell | J. F. | Jennacubbine | F4P | 1924 |
| Powell | J. K. | Margrave, Bindi Bindi | 3PL and 33D, 103E | 1962 |
| Powell | John | Dinasycold, Beverley | JP6 | 1912 |
| Powell | John | Dinasycold, Beverley | JP6 | 1924 |
| Powell | John Thos. | Northwick Farm, Kokadine, via Wongan Hills | 6TP | 1924 |
| Powell | K. & N. | Kenora Park Farm, Mardella | K6P and 109B, 109A | 1962 |
| Powell | K. W. & M. R. | Fern Hill, Aldersyde | PG0 and 119B, 22A | 1962 |
| Powell | M. A. (Mrs) | Sunny View, South Bunbury | 8MP | 1962 |
| Powell | M. I. | Hiawatha, Lower Williams | M1P and 23B, 7E | 1962 |
| Powell | M. P. | Swan Loc. 1912 Lot 7, Stoneville | MP5 and 10C, 104A | 1962 |
| Powell | N. G. & M. M. | Silverton, Goomalling | 2NP and 46C, 57F | 1962 |
