| McGuire | Thos. | Fermor, Broomehill | 2GM | 1924 |
| McGuire & Tonkin | T. P. & F. F. | Red Hill, Onslow | SK2 | 1924 |
| McHardy | J. & M. | Deeside, Needelup | NJ9 | 1924 |
| McHardy | M. | Braeside, Needilup | NJ9 and 20C, 32A | 1962 |
| McHardy | N. E. & L. J. | 596, 593, Needilup via Ongerup | 1MB and 24B, 21A | 1962 |
| McHugh | A. E. | Mugga Muggin, Wongamine | Z8U | 1924 |
| McHugh | E. H. | Muthawandery, Dandaragan | 4EM and 43B, 9E | 1962 |
| McHugh | H. R. & B. I | Noonameena, Wongan Hills | 7HR and 13B, 119E | 1962 |
| McHugh | R. J. | Lakeside, Koonberkine | RU6 and 17B, 5E | 1962 |
| McHugh | R. W. J. | Lakeside, Dowerin | RU6 | 1924 |
| McHugh | W. A. | Cues Patch, Lawlers | AM0 | 1924 |
| McIirath | J. H. & B. J. | Warrening Springs, Yoting | JM9 and 19B, 108A | 1962 |
| McIiroy | J. & W. A. | Boonari, Esperence | 6JV and 84C, 80E | 1962 |
| McIlhatton | Moore | Group 5, Dixvale | MM2 | 1927 |
| McIlraith | William L. | Tambellup | MG0 | 1928 |
| McInerney | T. | Port Fairy, Minnivale | ZM9 | 1924 |
| McInnerney | Mrs S. H. | Rutland Station, Cue | LM6 | 1924 |
| McInnerney | Mrs. S. H. | Rutland Station, Cue | LM6 | 1912 |
| McInnes | E. (Mrs) | Bloomsdale, Wagin | 3MA and 31B, 24A | 1962 |
| McInnes | E. C. | Block No. 12, Southern Cross | E3M | 1912 |
| McInnes | E. C. | Block No. 12, Southern Cross | E3M | 1924 |
| McInnes | G. A. | Ninghan 3154, Mukinbudin | GM1 and 32B, 33E | 1962 |
| McInnes | J. A. | Bloomsdale, Wagin | 3MA | 1912 |
| McInnes | J. A. | Bloomsdale, Wagin | 3MA | 1924 |
| McInnes | P. J. | Ninghan Loc. 2451-2, 2230, Mukinbudin | MP2 and 24D, 50E | 1962 |
| McInnes | R. | Dalmore, Kulin | V5M and 31B, 24A | 1962 |
| McInnes | R. & I. | Dalmore Farm, Kulin, via Wickepin | V5M | 1924 |
| McInnes | W. | Tappal Farm, Wickepin | M5S | 1912 |
| McInnes | W. | Tappal Farm, Wickepin | M5S | 1924 |
| McInnes Moir | Elizabeth | Fanny Cove Station, Esperance | EM6 | 1926 |
| McInness | John F. | Loc. 66, Esperance | O5V | 1924 |
| McIntosh | A. S. | White Well, Quairading | WW8 | 1912 |
| McIntosh | A. S. | White Well, Quairading | WW8 | 1924 |
| McIntosh | Elizabeth | Avon Loc. 29911/55, 17092/74, Kumminin | M7E | 1912 |
| McIntosh | Elizabeth | Avon Locs. 29911/55, 17092/74, Kumminin | M7E | 1924 |
| McIntosh | Jas. | Braeside Farm, Wickepin via South Dorakin | M1C | 1912 |
| McIntosh | Jas. | Braeside Farm, Wickepin | M1C | 1924 |
| McIntosh | Johanna | Lewis and Reids Mill, Allanson | YN9 | 1924 |
| McIntosh | John F. | Winchester | M8X | 1924 |
| McIntosh | Kelly, Evans, Watson, Mawley, Roger & Herbert | Murchison House, Northampton | 0V7 | 1925 |
| McIntosh | O. R. | 2229 Plantagenet, Eden, Youngs Siding | OM6 and 40B, 119A | 1962 |
| McIntosh | R. | 185-7,242-4, Dalmakay, North Walgoolan | 7MB and 45B, 29A | 1962 |
| McIntosh | S. & D. | Buckland, Northam | AN3 and 7C, 41E | 1962 |
| McIntosh | S. S. | Loc . 1973, Youngs Siding via Albany | M2Y and 59F, 22B | 1962 |
| McIntosh | T. S. | Eden, Youngs Siding via Albany | SM6 and 53F, 4C | 1962 |
| McIntosh & Burton | - | Dunbar; Katanning | DB3 | 1928 |
| McIntosh Fry & Mawley | - | Government Saleyards, Claremont | V3U | 1924 |
| McIntyre | D. C. | Springfield Farm, Dumbleyung | 4DM | 1912 |
| McIntyre | D. C. | Sprigfield Farm, Dumbleyung | 4DM | 1924 |
| McIntyre | Daniel | Yilgarn Loc. 140, Westonia | 6NQ | 1925 |
