| Caldow | R. A. | Locs. 739/740, Three Springs | R8G | 1924 |
| Caldwell | A. N. & J. M. | Silverhaze, Badgebup | OC2 and 19C, 6A | 1962 |
| Caldwell | Ernest A. | Block 147, Kendenup, Kendenup | YD9 | 1925 |
| Caldwell | G. R. | Roe Loc. 441, Newdegate | KV0 | 1924 |
| Caldwell | G. R. | Roe Loc. 441, Lakeview, Newdegate | KV0 and 12D, 53F | 1962 |
| Caldwell | J. R. | Fern Hill, Wandering | JR8 and 16C, 13E | 1962 |
| Caldwell | James A. | Boody Hill, Katanning | C3J | 1912 |
| Caldwell | James A. | Boody Hill, Narrogin | C3J | 1924 |
| Caldwell | M. & C. | Merunah, Kojonup | 7MG and 14B, 112E | 1962 |
| Caldwell | O. C. | Gidgelbarrup, Katanning | OC2 | 1912 |
| Caldwell | O. C. | Gidgelbarrup, Katanning | OC2 | 1924 |
| Caldwell | R. J. | Glen Irwin, York | RC8 and 104E, 9D | 1962 |
| Caldwell & Son | J. L. | Walyaming & Plant. 5499, Katanning | 6CU and 118B 49A | 1962 |
| Caldwell Bros. | - | Gidgelbarrup, Katanning | CB9 | 1912 |
| Caldwell Bros. | - | Gidgelbarrup, Katanning | CB9 | 1924 |
| Caldwell Bros. | - | Commonage, Riverina, Menzies | KO2 | 1924 |
| Cale | James | Leases 195 & 196, Leonora | 0CO | 1924 |
| Cale | Jas. | Leases 195 and 196, Leonora | OC0 | 1912 |
| Caley | J. F. | Wogerlin, Corrigin | FC4 and 67E, 34B | 1962 |
| Caley | Miriam I. | Corrody, Nornakin, via Corrigin | Q2C | 1924 |
| Caley | W. | Corrody, Corrigin | Q2C and 31B, 20E | 1962 |
| Caley | W. M. | Carona, Corrigin | GB8 and 46B, 48E | 1962 |
| Caligari | Antonio John | Loc. 5478, Donnelly River, Manjimup | C6Q | 1924 |
| Caligaro | A. | Brickworks, Bootenal | C3A and 46B, 36E | 1962 |
| Calita Pastoral Co. | - | Ronver Hills, Maya | 5BJ and 24D, 45E | 1962 |
| Callaghan | John | 62½- Mile, Mullewa Railway | ME2 | 1912 |
| Callaghan | John | 62½ Mile, Mullewa Railway | ME2 | 1924 |
| Callaghan | M. | Dell Farm, Northampton | 6NG | 1924 |
| Callagher | Chas. | Commonage, Menzies | 0CQ | 1924 |
| Callahan & Negri | - | Woodbine, Balingup | 9DF | 1924 |
| Callan | James | Burn Brae, Narrogin | JG6 | 1928 |
| Callander | Robt | Ten- Mile, Cuballing | R7C | 1912 |
| Callander | Robt. | Ten Mile, Cuballing | R7C | 1924 |
| Caller | S. G. | Vic. 8725, Sunset, Gunyidi, via Watheroo | 7SG and 17B, 9E | 1962 |
| Calley | A. R. C. | Grass Flat, 3 ½ Mile, Wyndham | EA8 | 1912 |
| Calley | A. R. C. | Grass Flat, 3½ Mile, Wyndham | EA8 | 1924 |
| Callow | G. E. | Blaenavon, Dangin | 0CG | 1912 |
| Callow | G. E. | Blaegavon, Dangin | 0CG | 1912 |
| Callow | G. E. | Blaegoven, Dangin | 0CG | 1924 |
| Cally & Co. | - | 8352 (Marchagee), Coorow | CL2 and 80B, 117A | 1962 |
| Caltsounis | D. C. | Nel. Loc. 11937, Shannon | 5DC and 42C, 114E | 1962 |
| Calver | R. P. | M 1595 & Loc. 4092, Pintharuka | R8C and 45C, 10E | 1962 |
| Calzoni Bros. | - | Leake 28, 29, 23, 263, 200, Narembeen | C4M and 45D, 46E | 1962 |
| Camac | Don | Daldee, Carnamah | D4E and 42C, 4E | 1962 |
| Camae | D. R. | Nygallo, Carnamah | RC0 and 11B, 114E | 1962 |
| Camarri | P. F. | Cundinup Estate, Cundinup, via Kirup | 0PC | 1962 |
| Camarri | S. | Lombardia, Jarrahwood | P4C | 1962 |
| Camarri & Co. | S. | Lombardia, Jarrahwood | 2SC and 114D, 22E | 1962 |
| Cambell | Gracie | Rushy Gully, Bowes Estate, Northampton | 1CG | 1924 |
| Camden | R. J. | Wire Field Brook, Benger | NX9 | 1962 |
