| Coleman | E. J. & T. M. | Jim Jam, Pinjarra | EC1 and 51F, 34D | 1962 |
| Coleman | Harry | Tin Area, South Greenbushes | KC5 | 1912 |
| Coleman | Harry | Tin Area, South Greenbushes | KC5 | 1924 |
| Coleman | J. | Clifton, W. Cunderdin | 6CJ and 9D, 30E | 1962 |
| Coleman | J. S. | Rockdale, Cunderdin | SC5 and 115A, 22B | 1962 |
| Coleman | John C. | Donnybrook | CY9 | 1924 |
| Coleman | Joseph, H. | Pastoral Lease 1389, Mt. Magnet | K3C | 1924 |
| Coleman | K. J. & E. B. | Winevery Hill, Truslove, via Coolgardie | 7JC and 104A, 46B | 1962 |
| Coleman | Patk. | Ravensthorpe | P0C | 1912 |
| Coleman | Patrick | Ravensthorpe | P0C | 1924 |
| Coleman & Rogers | W. & J. | Mt. Farmer Station, Mt. Magnet | 2 CR | 1912 |
| Coleman & Rogers | W. & J. | Mt. Farmer Station, Mt. Magnet | 2CR | 1924 |
| Colembra | Joseph | Waterloo | 5NC | 1924 |
| Coles | E. G. | Stirlings, Wagin | 5EC and 19B, 117A | 1962 |
| Coles | Fredk. Chas. | Glen Kalgan Estate, Lower Kalgan | KS6 | 1924 |
| Coles | James | Mambillan, Toodyay | JC9 | 1912 |
| Coles | James | Mambillan, Toodyay | JC9 | 1924 |
| Coles | M. E. | 1860, Parkerville | M3C | 1962 |
| Coles | W. H. | West Dale, Beverley | 9VK | 1924 |
| Coles | York | Miner's H. L. No. 7, Norseman | YC0 | 1912 |
| Coles | York | Miner's H/L. No. 7, Norseman | YC0 | 1924 |
| Coley | F. J. | Chellaston Farm Pt. Lots 11, 12 Sussex Loc. 5, Mary Brook | F4Y | 1962 |
| Coley | Fredk. John | Newton, via Busselton | F4Y | 1924 |
| Coley | W. H. N. D. | Chellaston Farm, Marybrook | W6Y and 118B, 104E | 1962 |
| Colhoun | J. G. | Fern Hill, Woodanilling | GC9 | 1912 |
| Colhoun | J. G. | Fern Hill, Woodanilling | GC9 | 1924 |
| Colhoun | Wm. | Yellowdine Commonage, Southern Cross | X3O | 1924 |
| Coli | G. N. C. | Well. Loc. 1775, 2349, 2386, 1228 (ptn. of 1227, 2210), Darkan | 4GC and 3B, 27A | 1962 |
| Collard | B. & E. | Kitchener Park, Gingin | C1D and 49B, 30A | 1962 |
| Collard | Charles E. | Springdale, Boundain | 8GQ | 1925 |
| Collard | F. | Lot 141, Newdegate | 6XF | 1924 |
| Collard | S. T. | 20765, Walgoolan | SC4 and 38D, 18E | 1962 |
| Colleran | William Edward | Palmyra, E. Fremantle | W0G | 1926 |
| Collett | A. W. | Honeycomb, Gingin | Y7C and 37B, 33A | 1962 |
| Collett | Alfred | Rose Villa, Gingin | AL7 | 1927 |
| Collett | James A. | Cotna Farm, Palgarup P.O. | 4CZ | 1925 |
| Collett | R. A. | Aldershot, Gingin | DC4 | 1912 |
| Collett | R. A. | Aldershot, Gingin | DC4 | 1924 |
| Collett | T. & E. | Locs. 15090, Kondinin | UT0 | 1924 |
| Collie | K. & J. | Muga, Collie | K7J | 1912 |
| Collie | K. & J. | Muga, Collie | K7J | 1924 |
| Collie | T. G. | Foynes, Collie | T1C | 1912 |
| Collie | T. G. | Foynes, Collie | T1C | 1924 |
| Collie Industrial Co-operative Society | - | Collie | 9KZ | 1924 |
| Collier | E. W. | 13576, Shackleton | W1A and 6B, 56F | 1962 |
| Collier | G. R. | 2487, 2488, Alexandra Bridge | GC4 | 1962 |
| Collier | Richard | Lealholm Farm, Northhampton | CV8 | 1924 |
| Collier & Son | R. | Lealholm, Northampton | CV8 and 102D, 7E | 1962 |
| Colling | Robert | Loc. 20303, Mandiga | D0C | 1925 |
| Colling & Son | - | Locs. 2010, 2134, 2616, 4629, 585, 4325, Denmark | VC6 and 32C, 42E | 1962 |
