| Couiglia | Jasper | Block No. 2116, Watheroo | 6CR | 1912 |
| Couiglia | Jasper | Block No. 2116, Watheroo | 6CR | 1924 |
| Coulson | F. C. | 4566, Darkan | CF6 and 42B, 46A | 1962 |
| Coulson | John A. | Ferndale, Narrogin | 0XX | 1924 |
| Coulter | A. | Somerville Farm, Tarwonga, Williams | A9 C | 1912 |
| Coulter | A. | Somerville Farm, Tarawonga, Williams | A9C | 1924 |
| Coulter & Burkett | E. & E. G. | Kia-ora, Belmont | 0BC | 1912 |
| Coulter & Burkett | W. & E. G. | Kia-ora, Belmont | 0BC | 1924 |
| Coulthard | A. E. | Seamore Loc. 600/1, Goomalling | 7AC and 47B, 8E | 1962 |
| Coumbe | M. R. B. & B. F. | Woodleigh, Nungarin | Y1C and 42B, 35E | 1962 |
| Coumbe | Reuben G. | Commonage, Meekatharra | XN5 | 1924 |
| Coumbe | T. R. | Caloola, Caron | T7C and 28D, 40E | 1962 |
| Coumbe | W. H. C. | Pernathy Farm, Nungarin | Y1C | 1924 |
| Counsel | A. | Riverdale, Popanyinning | AC5 and 32C, 110E | 1962 |
| Counsel | A. & P. W. | Vic. Loc. 3692, Buntine | UA0 | 1924 |
| Counsel | Chas. Hy. | Mannadale, Mt. Kokeby | 2CC | 1912 |
| Counsel | Chas. Hy. | Mannadale, Mt. Kokeby | 2CC | 1924 |
| Counsel | F. L. | Plant. Loc. 5661, S. Stirling, via Mt. Barker | FC2 and 16C, 37E | 1962 |
| Counsel | G. F. | Vic. Loc. 5296-7-8, Buntine | CZ0 and 46B, 40A | 1962 |
| Counsel | H. (Mrs) | Sunnyside, Buntine | 4HC and 30B, 67E | 1962 |
| Counsel | N. A. | 5753, 7213, Buntine | N5C and 38B, 114E | 1962 |
| Counsel | P. W. | Lot 60, Boya | P1C | 1962 |
| Counsel | Philip Walter | Glen Mervyn Farm, Buntine | 5PG | 1926 |
| Counsel | R. | Allana, Popanyinning | RC7 and 41B, 118E | 1962 |
| Counsel | R. F. | Glen Iris, Buntine | RC2 and 1C, 107E | 1962 |
| Counsell | Wm. | Coolup | WC2 | 1912 |
| Counsell | Wm. V. | Coolup | WC2 | 1924 |
| Coupar | D. | Nokanning | ZC4 | 1924 |
| Coupar | D. | 11069, Nokaning | ZC4 and 25B, 30E | 1962 |
| Coupar | J. | Glen Iris, Nokaning Siding | C2J and 42A, 9B | 1962 |
| Coupar | R. & R. G. | Sunnydale, Wubin | R3V and 12B, 49A | 1962 |
| Coupar | R. A. | Avon 11602, Nangeenan | RC5 and 49A, 8B | 1962 |
| Coupe | Laura | Lots 3423, 332, 3, Collins Street, Merredin | 9KO | 1924 |
| Couper | A. G. | U. K., Dowerin | T7V and 57F, 21C | 1962 |
| Couper | D. C. | Preston Agric. Area Lots 100 & 207 Ross Common, Lowden | DC6 and 19C, 30A | 1962 |
| Couper | Donald Alex | Hammerfield Farm | DO3 | 1924 |
| Couper | G. A. | Mayfield, Trayning | DO3 and 4B, 6E | 1962 |
| Couper | G. A. & G. D. | Lustruther, Dowerin | 6KC and 30B, 14A | 1962 |
| Couper | J. K. | Lustruther, Dowerin | 6KC | 1912 |
| Couper | J. K. | Lustruther, Dowerin | 6KC | 1924 |
| Couper | K. A. & H. J. | Belvedere, Trayning | C8O and 12D, 119E | 1962 |
| Couper | L. G. | Hamencefield, Kununoppin | LG6 and 102B, 45A | 1962 |
| Couper | Mrs A. | Lakes Farm, Dowerin | T7V | 1924 |
| Couper | R. S. | Dakota, Albany | 3BC and 44B, 115E | 1962 |
| Couper | S. J. | 20112, Manmanning | C0J and 56F, 71B | 1962 |
| Couper | Thos. Alex | Black Range Mine, Sandstone | 8CT | 1924 |
| Couper & Son | G. T. | Donereil, Mt. Barker | G0T and 20A, 117B | 1962 |
| Courboules | J. M. & J. P. | Allowa, Corrigin | NP4 and 35B, 50E | 1962 |
| Court | Arthur H. | Loc. 1912, 15, 21/55, Dalwallinu | CU7 | 1912 |
| Court | Arthur H. | Locs. 1912, 15, 22/55 (Dalwallinu), Stables (Leonora). | CU7 | 1924 |
