| Main | P. T. & B. | Tarilta, Yelbeni | 1PS and 49B, 7E | 1962 |
| Main | Robert | Peel Estate Lots 44 and 45, Wellard, Peel Estate | Q6F | 1925 |
| Main | W. T. & N. E. | Carinya, Trayning | WE9 and 108D, 11E | 1962 |
| Main Bros. | - | Hamilton, Kelmscott | 3FM | 1912 |
| Main Bros. | - | Hamilton, Kelmscott | 3FM | 1924 |
| Mainland | H. O | Denham, Sharks Bay | HM9 | 1924 |
| Mainland | H. O. | Denham, Shark Bay | HM9 | 1912 |
| Mainwaring & Sons | H. R. | 2468 Plantagenet, Denmark | 4HR and 40B, 23A | 1962 |
| Maiolo | A. | Block No. 25000, Merredin | A8P and 6A, 14C | 1962 |
| Maiolo | A. | Loc. No. 1411 Marybrook, Busselton | MA6 and 57F, 120B | 1962 |
| Maiolo | I. A. | Loc. 3785, kirup | 5MV and 19D, 51F | 1962 |
| Maiolo | L. (Mrs) | Victoria loc. 2306-7, 2384, 2406, Geraldton | T6B and 50B, 46E | 1962 |
| Maiolo | V. | 334, 827, 2, 1441, Marybrook | 9VM and 119A, 84C | 1962 |
| Maiolo | V. | 19442-3, 17017, 2885, 23225, Merredin | H2Z and 16C, 80A | 1962 |
| Maiolo & Son | I. & F. | Avon Loc. 15212, 18423, Merredin | M3S and 108A, 37C | 1962 |
| Maisey | A. J | Minnie Vale, Dowerin | MA7 | 1924 |
| Maisey | A. J. | Minnie Vale, Dowerin | MA7 | 1912 |
| Maisey | E. T | Woodlands, Dowerin | 5EM | 1924 |
| Maisey | E. T. | Woodlands, Dowerin | 5EM | 1912 |
| Maisey | Flora P. | Lochill Farm, Minnivale | 7FP | 1924 |
| Maisey | H. C. | W. S. L. S. 906, Loc. 2072, Rocky Gully | H6M and 36D, 30E | 1962 |
| Maisey | J. A. | Block 2702 /68 Dowerin | 2MH | 1912 |
| Maisey | J. A. | Block 2702/68, Dowerin | 2MH | 1924 |
| Maisey | J. A. | Yool, Dowerin | 2MH and 119D, 119E | 1962 |
| Maisey | K. J. & J. A. | Kerreline, Southern Brook, via Northam | K6M and 46C, 48E | 1962 |
| Maisey | K. T. | Evans Locs. 25195, 17363, 17364, 19450, 22134, 22929, Dowerin | K4M and 24D, 114E | 1962 |
| Maisey | K. T. (Mrs) | Rosehill, Dowerin | 9MM and 14E, 112D | 1962 |
| Maisey | M. C. | Strathclyde, Bodallin | VX9 | 1962 |
| Maisey | N. A. & E. N. | Shady Acres, Southern Brook | M4Y and 32D, 44E | 1962 |
| Maisey | R. C | The Lakes, Dowerin | R3M | 1924 |
| Maisey | R. C. | The Lakes, Dowerin | R3M | 1912 |
| Maisey | T. B. & V. W. | Southern Brook, Southern Brook | R3M and 23A, 32C | 1962 |
| Maisey | T. C. & J. M. | Sun Valley, Dowerin | MA7 and 32B, 40E | 1962 |
| Maisey | Thos H. | Dingley Dell, Dowerin | TY6 | 1924 |
| Maisey & Sons | D. & D. | Fairbanks, Dowerin | X7M and 28C, 108E | 1962 |
| Maitland | A. G. | Lexden, Capel | AL9 | 1912 |
| Maitland | Amy G. | Lexden Farm, Capel | AL9 | 1912 |
| Maitland | Amy. G. | Lexden Farm, Capel | AL9 | 1924 |
| Maitland | C. W. | Locs. 141, 107. 110, 138, 106, 1140, 15754, 15748, Wyalkatchem | 0MT and 46A, 24B | 1962 |
| Maitland | F. O. | Lexden Farm, Capel | F0M | 1912 |
| Maitland | G. W. | Avon Locs. 16594, 16413, 8383, Benjaberring | G5M and 16C, 103E | 1962 |
| Maitland | H. H. | Avon Loc. 11681 Yorkrakine | H4M | 1912 |
| Maitland | H. H. | Avon Loc. 11681, Yorkrakine | H4M | 1924 |
| Maitland | K. & I. | Papanui, Korrelocking | K2M and 48B, 14E | 1962 |
| Maitland | K. H. | Avon Locs. 11527, 13875, Korrelocking | H4M | 1962 |
| Maitland | M. A. | Blue Hills, Korrelocking | M5M and 104B, 4E | 1962 |
| Maitland | P. O. | Lexden Farm, Capel | F0M | 1924 |
| Maitland | R. J. & S. | 11528, 14619, 17481, Wyalkatchem | M7J and 16A, 21C | 1962 |
| Maitland Bros. | - | Rocklawn, Papanui and Loc. 17444, Korrelocking | 0MJ and 14B, 120E | 1962 |
| Major | J. P. | Glen Farm, Williams | 9PM | 1912 |
