| Minogue | D.N. | Commonage, Geraldton | 1MN | 1912 |
| Minogue | P. | Spring Vale, Narrogin | PM2 | 1912 |
| Minogue | P. | Spring Vale, Narrogin | PM2 | 1924 |
| Miocerich | Jos. | Commonage, Meekatharra | L7Q | 1924 |
| Miolini & Son | A. C. | Roe Loc. 2091, Narembeen | 0MS and 17B, 71E | 1962 |
| Miscamble | A. J. C. | Alphington Farm, Dorakin, via Wickepin | 4VM | 1924 |
| Mischler | Chas. | Glentulloch Road, Bridgetown | UZ4 | 1924 |
| Miskavictz | Mrs K. | Perth Road, Mt. Barker. | 1KV | 1924 |
| Missing | Frank L. | Broome Dairy, Broome | OP3 | 1912 |
| Mistley Grazing Co. | - | 1682, 1330, 1684, Lake Camm | I3N and 45C, 48B | 1962 |
| Mitchel | D. S. | Serpentine Agric. Lot 35-8-9, Mundijong | 4BM | 1962 |
| Mitchell | A. | 252-3 Peel Estate, Mundijong | 3MX and 38D, 31E | 1962 |
| Mitchell | A. B. | 808-11, 820-3, Mt. Barker | M4V | 1962 |
| Mitchell | A. C. & C. C. | Newlands | F2M | 1924 |
| Mitchell | A. D. | Ninghan 2646, 2637, Wubin | 1AM and 4C, 112E | 1962 |
| Mitchell | A. E. | Block 1220, Lyalls Mill | MW8 and 14B, 13A | 1962 |
| Mitchell | A. E. & D. A. | 2949 and 2917 Sussex, Cowaramup | 9YN and 17D, 37E | 1962 |
| Mitchell | A. E. & F. T. | Plantagenet Loc. 3721, Mitchell, Kronkup | Z9Y | 1924 |
| Mitchell | A. J. | Drummer Farm, Nangeenan | 6MX | 1924 |
| Mitchell | A. J. | Cobran, Northampton | UJ1 and 13B, 16E | 1962 |
| Mitchell | A. O. | Yanganooka, Geraldton | LU2 | 1924 |
| Mitchell | A. O. | Fernleigh, Northampton | LU2 and 4C, 15E | 1962 |
| Mitchell | A.C.& C.C. | Newlands | F2M | 1912 |
| Mitchell | A.O. | Yanganooka, Geralgton | LU2 | 1912 |
| Mitchell | B. A. | 3326 Homestead Block, Wagin | MB9 and 119A, 36B | 1962 |
| Mitchell | B. E. | Pt. of 3220 and 2538, Kirup | 0OV and 4C, 21A | 1962 |
| Mitchell | Bros. | Lake Side Wagin | 0BM | 1912 |
| Mitchell | Bros. | Dookaling Spring, Moora | 6MB | 1912 |
| Mitchell | C. A. | Winda Byne, Waddington | 1CM and 1C, 42A | 1962 |
| Mitchell | C. A. & C. B. | Carla Mia, Dinninup | M7X and 43C, 4A | 1962 |
| Mitchell | C. R. | Richmond Downs, Beacon | 4CV and 22D, 22E | 1962 |
| Mitchell | Chas. | Burnong and Gullewa, Gullewa | 3CM | 1912 |
| Mitchell | Chas. E. | Barbulin | X5N | 1924 |
| Mitchell | Chas. M. | Kurrajong, Nyabing | NM5 | 1924 |
| Mitchell | Chas. Robt. | Fairfield, Northampton | N5R | 1924 |
| Mitchell | Clayton & Glen | Bickley Park, Donnybrook | MB2 | 1927 |
| Mitchell | D. D. | Cragganmore, Dinninup | DM8 | 1924 |
| Mitchell | D.D. | Cragganmore, Dinninup | DM8 | 1912 |
| Mitchell | E. | Hamel Farm, Yandanooka | X3V | 1924 |
| Mitchell | E. A. | Westington, Greenbushes | 1OM | 1924 |
| Mitchell | E. B & A. S. | Capowie, Northampton | ME7 and 17B, 15E | 1962 |
| Mitchell | E. C. | 9439/74, Dowerin | 3ME | 1924 |
| Mitchell | E. C. | Boo-in-garra, Benjabbering | 3ME and 26A, 46C | 1962 |
| Mitchell | E. E. | Sirocco, Corrigin | MX2 and 31D, 17E | 1962 |
| Mitchell | E. G. | Ningham Loc. 2629, Wubin | 2EM and 47D, 12E | 1962 |
| Mitchell | E.A. | Westlington, Greenbushes | 1OM | 1912 |
| Mitchell | E.C. | 9439/74, Dowerin | 3ME | 1912 |
| Mitchell | Edward | Almond Grove, Cuballing | XM4 | 1924 |
| Mitchell | Evelyn M. | Petone, Waroona | EM6 | 1912 |
| Mitchell | Evelyn. M. | Petone, Waroona | EM6 | 1924 |
