| Menegola & Betti | - | The Dairy, Albany | M1B and 38D, 16E | 1962 |
| Meney | J. | Lochwood, wialki | 9MY and 20B, 103E | 1962 |
| Mengler | Gustav | Vict. Locs. 20/495/ 20/738, Nabawa | G4N | 1924 |
| Mengler | K. L. & V. | Lilydale, Tenterden | LS9 and 5B, 39A | 1962 |
| Mengler Bros. | - | Lilly Dale, Tenterden | LS9 | 1912 |
| Mengler Bros. | - | Lilly Dale, Tenterden | LS9 | 1924 |
| Menhennett | John Hy. | Donnybrook | NM4 | 1924 |
| Menmuir | Geo. | Derby | M9G | 1912 |
| Menmuir & Ennis | - | Run, West Kimberley | M9G | 1924 |
| Menmuir & Martin | - | Dunrabin Farm, West Bendering, via Corrigin | Q7Z | 1925 |
| Menz | F. & B. | Orcades, Mogumber | F1M and 35D, 120E | 1962 |
| Menz | P. S. G. | Pingin, Kookynie | PM1 | 1912 |
| Menz | P. S. G. | Pingin, Kookynie | PM1 | 1924 |
| Menzies | R. W. & J. H. | Stathmore, naruban | 1UM and 5D, 20E | 1962 |
| Menzies Mun. Council | - | Menzies Pound, Menzies | MP6 | 1924 |
| Menzies Municipal Council | - | Menzies Pound, Menzies | MP6 | 1912 |
| Menzies Municipal Council | - | Menzies Pound, Mezies | MP6 | 1962 |
| Mepham | H. S. | Flower Hill, Darkan | 6HM and 28D, 106E | 1962 |
| Mercer | A. T. | Inglefell, York | AT0 | 1912 |
| Mercer | A. T. | Ingelfell, York | AT0 | 1924 |
| Mercer | D. L. | Avon Loc. 12997, York | DL6 and 31E, 35D | 1962 |
| Mercer | Ernest | Loc. 14264, Trayning | 5EN | 1924 |
| Mercer | James | The Promised Land, Albany | 5XM | 1924 |
| Mercer | K. F. & Co. | Dongeena, Arthur River, West Wagin | K4M and 36B, 14A | 1962 |
| Mercer | Keith F. | Arthur River | K4M | 1924 |
| Mercer Bros. | - | Flood Grove Creek, York | M1B | 1912 |
| Mercer Bros. | - | Weetulta Farm, Dowerin | VS2 | 1912 |
| Mercer Bros. | - | Flood Grove Creek, York | M1B | 1924 |
| Mercer Bros. | - | Weetulta Farm, Dowerin | VS2 | 1924 |
| Mercey | Eliz. M. | George Road, Geraldton | Y3M | 1924 |
| Merchant | A. H. | 2963 Lots 53-4 and 1, Bluff Point | H2M and 37B, 106E | 1962 |
| Merchant | C. H. | Loc. 11177, Nannup | M8N | 1962 |
| Merchant | James Mitchel | Nannup | P1S | 1925 |
| Merchant & Son | R. V. & E. A. | Ninghan Loc. 3046, Beacon | VM5, 23D, 103E | 1962 |
| Mercuri | G. I. | Sussex 716, Boallia, via Buselton | GM0 and 3C, 117E | 1962 |
| Mercy | Chas. | Commage, Isseka | CO4 | 1912 |
| Mercy | Chas. | Commonage, Isseka | CO4 | 1924 |
| Mercy | James | Isseka, Northampton | MO5 | 1912 |
| Mercy | James | Isseka, Northampton | MO5 | 1924 |
| Mercy | L. M. | Mcguire Farm, Isseka, via Northampton | MO5 and 37C, 15E | 1962 |
| Meredith | B. R. | Rock Farm, Newcastle | 1BM | 1912 |
| Meredith | B. R. | Rock Farm, Toodyay | 1BM | 1924 |
| Meredith | C. E. | Manooh, Dalwallinu | F8M | 1912 |
| Meredith | C. E. | Manooh, Dalwallinu | F8M | 1924 |
| Meredith | Edith A. | Beaumont, Harvey | CV3 | 1912 |
| Meredith | Edith A. | Beaumont, Harvey | CV3 | 1924 |
| Meredith | F. | M. H. Lease, No. 2, Mt. Sir Samuel | 8FM | 1912 |
| Meredith | F. | M.H. Lease No. 2, Mt Sir Samuel | 8FM | 1924 |
| Meredith | F. J. | Moorup, Wilga | 0FM and 10D, 37E | 1962 |
| Meredith | Fredk. John | Burtville | 5NF | 1924 |
