| Kirby | J. | Cuttening, Jitarning | 0KJ | 1924 |
| Kirby | M. | Mianby, Beacon | K0M and 40A, 45B | 1962 |
| Kirby | R. A. | Normanvale, Jitarning | 0KJ and 47B, 111A | 1962 |
| Kirby | R. A. | Carramar, Boyup Brook | R3K and 118D, 48E | 1962 |
| Kirby | R. J. | Grassmere, Jitarning | 8RK and 39A, 33C | 1962 |
| Kirby | R. S. | Commonage Broome | 8PO | 1924 |
| Kirby | Reg. John | Grassmere, 86- Gate, Geetarning, via Wickepin | 8RK | 1924 |
| Kirby | S. | Wilgo, Bullsbrook | 6XR | 1962 |
| Kirby | S. J. & M. J. | Lupindale, Floreat Park | T4K and 5B, 19A | 1962 |
| Kirby | W. K. | Loc. Ninghan 2977-8-9-80, Beacon | W1K and 33B, 119E | 1962 |
| Kirk | A. R. | Avon Loc. 5504, 6599, 5722-3, 6863, 6439, 18491, East Pingelly | TV6 and 28C, 27A | 1962 |
| Kirk | A. W. | Tunneyville, East Wagin | A3K and 84A, 4C | 1962 |
| Kirk | H. J. | Darlingup, Duranillin | K3H and 39B, 71E | 1962 |
| Kirk | J. A. | Saint Ganh's Farm, Wolkabin, Bullock Hills | A2K | 1912 |
| Kirk | J. A. | Gauh's Farm, Wolkabin Bullock Hills | A2K | 1924 |
| Kirk | Robt. | Pinedale, Wogolin Road, East Wickepin | 5KR | 1924 |
| Kirk | W. A. | Allandale Farm, Wagin | WK2 | 1912 |
| Kirk | W. A. | Allandale Farm, Wagin | WK2 | 1924 |
| Kirk | W. J. | Allandale, Wagin | WK2 and 6A, 28C | 1962 |
| Kirkaldy | Robert | Fitz Locs. 52 & 160, Grass Patch | 4RK | 1926 |
| Kirkaldy | Robt W. | Fitzgerald Loc 142, 155 Boulder Road Kalgoorlie | 6KR | 1924 |
| Kirkby | G. R. | Commonage, Carnarvon | 1KK | 1912 |
| Kirkby | G. R. | Commonage Carnarvon | 1KK | 1924 |
| Kirkby Bros. | - | 347 Charles Street, North Perth | KB0 and 24D, 55F | 1962 |
| Kirkham | H. R. | Riverdale, Coolup | 1OK and 22B, 4E | 1962 |
| Kirkham | R. J. | Riverbrook, Coolup | 1VY and 11C, 22E | 1962 |
| Kirkham | Robt. | Grassmere, Coolup | 1VY | 1912 |
| Kirkham | Robt. | Grassmere Coolup | 1VY | 1924 |
| Kirkham | Wm. | Riverdale, Coolup | 1OK | 1912 |
| Kirkham | Wm. | Riverdale, Coolup | 1OK | 1924 |
| Kirkham | Wm. | Main Parade, West Guildford | 5OK | 1924 |
| Kirkland | Thos V. | Meekatharra | KK2 | 1924 |
| Kirkland | Thos. V. | Meekatharra | KK2 | 1912 |
| Kirkman | A. E. | Lakeway, Sunny-pines, Mandurah and Cooplup | K7A and 46D, 42E | 1962 |
| Kirkpatrick | G. E. | Peak Hill | VO1 | 1912 |
| Kirkpatrick | G. E. | Peak Hill | VO1 | 1924 |
| Kirkpatrick | John L. | Donnybrook | JK6 | 1912 |
| Kirkpatrick | John L. | Donnybrook | JK6 | 1924 |
| Kirkpatrick | R. H. C. | Springvale, Donnybrook | JK6 and 119B, 5E | 1962 |
| Kirkpatrick | Wm. | Mount Grey, Pastoral Leases Darlot | 5KB | 1924 |
| Kirkwood | Chas. | Old Broughton, Dulbelling | K1C | 1912 |
| Kirkwood | Chas. | Old Broughton, Dulbelling | K1C | 1924 |
| Kirkwood | Jas. John | Avon Location 21604, Dangin | 7KU | 1924 |
| Kirkwood | W. S. | Yowing Springs, Corrigin | WK3 | 1924 |
| Kirkwood | W. S. & A. M. | Yowing Springs, Corrigin | WK3 and 40A, 5B | 1962 |
| Kirkwood | W. S. (jnr.) | Narrogin Locs. 73, 66, 75, Narrogin | K4W and 47A, 32C | 1962 |
| Kirsch | Archd. | Donnybrook | AK2 | 1912 |
| Kirsch | Archd. | Donnybrook | AK2 | 1924 |
| Kirsch | John | Coromup, Esperance | KJ3 | 1912 |
| Kirsch | John | Coromup, Esperance | KJ3 | 1924 |
