| Mather | J. J. & H. | Kellerberrin | H5J | 1924 |
| Mather | Jack | Fernhill Farm; Doodlakine | JM7 | 1928 |
| Mather | P. J. | Doodlakine | 2YX | 1924 |
| Mather | R. J. | Bundaleer, Frankland River | 5XM and 22A, 28C | 1962 |
| Mather | R. K. & A. M. | Melbourne Loc. 111, 4, 54, 51, 50, 49, 52, 55, 56, Moora | 2RM and 23B, 118E | 1962 |
| Mather & Small | - | Challymenda Farm; Pindar | M1S | 1928 |
| Mather & Sons | C. A. & L. E. | 3019 Dalgonring, Beacon | A2M and 3C, 50A | 1962 |
| Mathers | Fredk. | Loc. 242, Bunbury Street, Collie | 8QM | 1924 |
| Matheson | Chas. | Meadow Vale, Wagerup | CM5 | 1912 |
| Matheson | Chas. | Meadow Vale, Wagerup | CM5 | 1924 |
| Matheson | D. F. | 5667, South Stirling | 3CK and 44C, 52F | 1962 |
| Matheson | F. | Lochine, Doodlakine | FM0 | 1912 |
| Matheson | F. | Lochine, Doodlakine | FM0 | 1924 |
| Matheson | Harold F. | Baroda, Doodlakine | Q9M | 1924 |
| Matheson | John Gray | Wavertan, Pingelly | O6M | 1924 |
| Mathews | A. D. & G. J. | Warren downs, Pemberton | 4AG and 84B, 104A | 1962 |
| Mathews | A. R. | Torbling, Narrogin West | ON8 | 1924 |
| Mathews | Albert A. | High View, Toolbrunup | BM2 | 1924 |
| Mathews | Albert A. | Laurinda, Wickepin | OA6 | 1924 |
| Mathews | B. C. | Loc. 881 Childlow's Well, Slade St Bayswater | YZ1 | 1912 |
| Mathews | B. C. | Loc.1881, Chidlow's Well, Slade Street Bayswater | YZ1 | 1924 |
| Mathews | B. M. & J. C. | Kooringa Farm, East Wickepin | M5T and 27A, 10C | 1962 |
| Mathews | Benj | Manovale, East York | B1M | 1924 |
| Mathews | Bert | Cardaba Creek, Maude's Landing | B0Q | 1924 |
| Mathews | C. | Eua Valla Station, Carnarvon | CM8 | 1912 |
| Mathews | C. F | Mandalup, Preston | C7F | 1924 |
| Mathews | C.F. | Mandalup, Preston | C7F | 1912 |
| Mathews | Chas | Town Lot 8, Kanowna | XM6 | 1924 |
| Mathews | E. H. | Mansfield Farm, Westonia | Y8E | 1924 |
| Mathews | E. W. | Rosehill, Cunderdin | E3M and 39C, 67A | 1962 |
| Mathews | Est. of Mrs E. A. | White Lodge Farm, Pinjarra | 5MT and 10B, 14A | 1962 |
| Mathews | F. | Block 110, Yandanooka | 9FQ | 1924 |
| Mathews | F. J. | Block 1151/96, pardu, Condon | OC5 | 1912 |
| Mathews | F. J. | Block 1151/96, Pardu, Condon | OC5 | 1924 |
| Mathews | F. Jno & P. | Callawar Station, Condon | 3MB | 1924 |
| Mathews | F. M. | 1449 Roe, Narembeen | F6M and 36B, 120E | 1962 |
| Mathews | F. N. | 8841, Kojonup | F4M and 42B, 42E | 1962 |
| Mathews | F., Jno., & P. | Callawar Station, Condon | 3MB | 1912 |
| Mathews | Frank | Gladstone Crescent, Collie | 6XM | 1924 |
| Mathews | G. H. | Springdale, North Dandalup | 7OH | 1962 |
| Mathews | G. W. | Bullecourt, Yandanooka | G3V | 1924 |
| Mathews | Geo A. | Mt Magnet | GM0 | 1924 |
| Mathews | Geo. A. | Common, Mt Magnet | GM0 | 1912 |
| Mathews | H. | Warren Road, Kattaning | 9MS | 1924 |
| Mathews | H. R. | Manly Hill, 2183, 2181, 1816, Boyup Brook | 1XM and 32B, 9E | 1962 |
| Mathews | H. R. | Cockburn Sound 601, Serpentine | U2M and 30B, 29A | 1962 |
| Mathews | Henry John | Loc. 15917, Bruce Rock | MZ2 | 1924 |
| Mathews | J. C. | Walgun Station, via Nullagine | VO6 | 1924 |
| Mathews | J. G. | Springdale, North Dandalup | JM1 | 1962 |
| Mathews | Jas. | Noonkanbah, Derby | BB8 | 1924 |
