| 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 |
| Collings | Geo. | Fencing Contractor, Onslow | 5CG | 1912 |
| Collings | Geo. | Onslow | 5CG | 1924 |
| Collingwood | P. A. | Yeppoon, Williams | PC2 and 29B, 103E | 1962 |
| Collingwood | Sam. Arnold | Malyalling | CU5 | 1924 |
| Collins | A. E. | Mallebelling, York | 2EC | 1912 |
| Collins | A. E. | Mallbelling, York | 2EC | 1924 |
| Collins | A. F. | Cloudview, Walliston | 7QG | 1962 |
| Collins | A. J. | Avon Locs. 19921-2-15226 Pts. 19923-4, York | AC9 and 42C, 28E | 1962 |
| Collins | A. W. | Murray Loc. 1423, Coolup | 5CV and 71D, 118E | 1962 |
| Collins | Amos | Colnbrook, Brookhampton | C4N | 1912 |
| Collins | Amos | Collie | C4N | 1924 |
| Collins | C. | Loc. 1640, 2800, 2801, Witchcliffe | Y8M | 1962 |
| Collins | C. D. | Glenburgh Stn., Carnarvon | S9N | 1912 |
| Collins | C. D. | Glenburgh Station, Carnarvon | S9N | 1924 |
| Collins | C. R. | 10036, Northcliffe | ZA5 | 1962 |
| Collins | C. T. | E. Cannington | X6C | 1924 |
| Collins | Chas. | Glenburgh, Carnarvon | C0L | 1912 |
| Collins | Chas. | Glenburgh, Carnarvon | C0L | 1924 |
| Collins | D. | Edenhope Farm, Waeel, Avondale Farm Broomehill | 1DC | 1912 |
| Collins | D. | Edenhope Farm, Waeel, Avondale Farm, Broomehill | 1DC | 1924 |
| Collins | D. L. & A. D. | Boyanup AA27, Boyanup | 3DC and 37B, 31E | 1962 |
| Collins | E. & J. M. | Plant. Locs. 35-40, Kendenup | 8KC and 14D, 27E | 1962 |
| Collins | E. C. & H. J. | Waddouring | CZ9 | 1924 |
| Collins | E. E. | Avon Loc. 14275, Bencubbin | EC8 and 48A, 71B | 1962 |
| Collins | E. P. | Collinsville, Mollerin | EC3 and 43C, 4E | 1962 |
| Collins | E. S. | Kareelya, New Norica | CE7 and 34B, 115A | 1962 |
| Collins | Eleanor | Commonage, York | 9EC | 1912 |
| Collins | Eleanor | Commonage, York | 9EC | 1924 |
| Collins | Eli | 6068/8007, 125/126, 6069/124, 201, Waeel | 3CE | 1924 |
| Collins | Eli. | 6068/8007. 125/126, 6069/124, 201, Waeel | 3CE | 1912 |
| Collins | Eliz. M. A. | Glenburgh Station, Carnarvon | L7Z | 1912 |
| Collins | Eliz. M. A. | Glenburgh Station, Carnarvon | L7Z | 1924 |
| Collins | Elvin William | Nannine District, Nannie | T6E | 1926 |
| Collins | F. E. | Moyamba, Buchanan River Siding | FC1 | 1912 |
| Collins | F. E. | Moyamba, Buchanan River Siding | FC1 | 1924 |
| Collins | F. H. | Redlands, Collie | ZJ8 | 1924 |
| Collins | F. T. | Yullundry, Mt. Barker | CF8 and 42B, 3E | 1962 |
| Collins | Frank C. | Lots 383, 388-9, Glenside, Coolup | O5C | 1924 |
| Collins | Frank H. | Roke Farm, Brooklands, Balingup | V5F | 1924 |
| Collins | Frank Henry Herbert | Buckingham via Collie | ⊚X1 | 1926 |
| Collins | Fredk. John | Holmesdale Farm, Balingup | YC2 | 1924 |
| Collins | G. A. | Mt. Hardy, York | 3GC | 1912 |
| Collins | G. A. | Mt. Hardy, York | 3GC | 1924 |
