| Mackay | R. L. | Spring Station, Roebourne | R0D | 1912 |
| Mackay | R. L. | Spring Station, Roebourne | R0D | 1924 |
| Mackay Bros. | - | Buckland, Northam | MY8 | 1924 |
| Mackean | Frederick W. | Canning Loc. 2, Lot 69, Welshpool | X9V | 1925 |
| Mackenzie | A. D. | Bareena, Victoria 9442, 8529, Caron | MA1 and 111A, 17B | 1962 |
| Mackenzie | A. G. K. | Moree, Moorine Rock | 8MZ and 20A, 45C | 1962 |
| Mackenzie | J. | Moy Farm, Pemberton | MX2 | 1962 |
| Mackenzie | J. D. F. | 916, 1159, Ferguson | 8DM and 33B, 30E | 1962 |
| Mackenzie | J. R. & N. K. | Tolarno, Northam | 7JK and 10B, 46E | 1962 |
| Mackenzie | R. | Todlina Lot 5436, Mogumber | DR9 and 117B, 49A | 1962 |
| Mackenzie & Son | M. & E. | Glenco, South Greenough | 1EM and 13B, 15A | 1962 |
| Mackey | Denis | Doocie Downs, Lake Darlot | MY6 | 1912 |
| Mackey | Denis | Doocie Downs, Lake Darlot | MY6 | 1924 |
| MacKie | C. M. (Mrs) | Kuranda, Dinninup | MO2 and 47B, 104E | 1962 |
| Mackie | E. M. | Lot 790 Clayton Road, Narrogin | E9M and 109A, 14B | 1962 |
| Mackie | F. H. | Loc. 16, Gosnells | F9M and 37C, 42E | 1962 |
| Mackie | G. P. & A. M. | Mirridong, New Norcia | 0PM and 44B, 119A | 1962 |
| Mackie | J. C. | Blocks 7847 /56 and 7848 / 56 Lake Yealering via Wickepin | M2X | 1912 |
| Mackie | J. C. | Blocks 7847/56 and 7848/56, Lake Yealering | M2X | 1924 |
| Mackie | J. R. | Riverdale, Burges' Siding | M3E | 1912 |
| Mackie | J. R. | Riverdale, Burges Siding | M3E | 1924 |
| Mackie | Margaret A. | Waroona | M1M | 1928 |
| Mackin | C. C. | Yorkrakine, via Tammin | MX0 | 1912 |
| Mackin | C. C. | Block 11514, Yorkrakine | MX0 | 1924 |
| Mackin | J. P. & K. A. | Astington, Tammin | MX0 and 14D, 50E | 1962 |
| Mackin & Son | F. J. | Kamballie, Tammin | F5M and 25B, 29E | 1962 |
| Mackinlay | A. | Hillcroft, Cuballing | 0ZM and 40D, 27E | 1962 |
| Mackinlay | John | Ardlin, Via Broomehill | 0ZM | 1924 |
| Mackinnon | Chas. & C. H. | Lease 3655, Glenoca, Hester P.O. | K7N | 1924 |
| MacKinnon | D. | Lot 12, Wellard | LM0 | 1962 |
| Mackinnon | Louis | Loc. 12, Wellard | LM0 | 1927 |
| MacKintosh | Edwd. W. | Avon location 24506, Mukinbudin | Q9Q | 1924 |
| MacKintosh | Euphemia | Glendeary, Bejoording, Via Toodyay | M4X | 1924 |
| Mackintosh | G. K. | Brae-View Farm, Pinjarra | M3Z | 1962 |
| Mackintosh | R. G. | Loc. 2016, Denmark | MX6 | 1962 |
| Mackness | A. J. C. | Duck End Farm, Denmark | Y9V and 26A, 40B | 1962 |
| Mackrory | Alfred | Peel Estate 70, Peel Estate | QY8 | 1925 |
| MacLachlan | R. C. | Snooky Farm, Talbot, York Farm | ZL8 | 1924 |
| MacLachlan | R. C. | West Sandgate, Talbot, via York | ZL8 and 37B, 11A | 1962 |
| MacLaren | K. | Location 15930, Kumminin | KM8 | 1924 |
| MacLaren | K. | 2770 and 2769, Margaret River | M4K and 119B, 110A | 1962 |
| MacLarty | H. K. | Vernlarn Farm, Benjinup | Z1M | 1924 |
| MacLean | C. | Redhill, Mt. Barker | 4CM and 11B, 107E | 1962 |
| Maclean | Chas. H. | The Pool, Williams | 7CM | 1912 |
| Maclean | Chas. H. | The Pool, Williams | 7CM | 1924 |
| MacLean | Frank Gordon | Yilgarrm Loc. 466, Drummin, Boddalin | F6M | 1926 |
| MacLellan | Donald | Colliston Farm, Trayning | 3DN | 1924 |
| MacLellan | Jas | H/F 10246/74, Kellerberrin | ML6 | 1924 |
| MacLellan | Jas. | H.F. 10246 /74 Kellerberrin | ML6 | 1912 |
| MacLennan | Lilian L. | Fairway, 7 Peach Street, North Perth | L7M | 1926 |
