| Hardie & McIntosh | - | Eden, Yong's Siding | SM6 | 1928 |
| Hardie & Sons | - | Peedamulla, Onslow | J3Y and 56F, 22C | 1962 |
| Hardie & Sons | A. E. | Waitemate, Dwarda, via Williams | 1OC and 60F, 30D | 1962 |
| Hardie & Sons | A. E. | Freah Fields & Dumbitt Hills, Popanyinning & W. Pingelly | G7H and 44C, 84A | 1962 |
| Hardie Bros. | - | Rosedale, Narrogin | H0H | 1912 |
| Hardie Bros. | - | Rosedale, Narrogin | H0H | 1924 |
| Hardie Bros. | - | Warralong, Port Hedland | H0H and 102C, 18E | 1962 |
| Hardiman | C. F. | Hohnfield, Gabbin | CH4 and 4C, 108E | 1962 |
| Hardiment | Joseph | Prospect Farm, 92 Gate, East Wickepin | 5XH | 1924 |
| Harding | A. | Blocks 10091 10092, South Caroling | 2HA | 1912 |
| Harding | A. | Blocks 100091 and 10092, South Caroling | 2HA | 1924 |
| Harding | C. F. | Ashburton | 7CH | 1912 |
| HArding | C. F. | Ashburton | 7CH | 1924 |
| Harding | E. E. | Lot 1 of Williams Loc. C, Vol. 434 Fol. 61, Williams | 4EH and 37C, 80E | 1962 |
| Harding | J. E. W. | Voormezelle, Emerald Street, Donnybrook | 0TQ | 1924 |
| Harding | Jonathan | Dalbys Gully, Geraldton | XH1 | 1924 |
| Harding | L. A. | Bannockburn, Forest Grove | 4LH | 1962 |
| Harding | R. | Group 81, Peel Estate | 0QX | 1925 |
| Harding | S. J. & W. H. | Stapleton Farm, Coben's Soak, Kojonup | HX4 | 1912 |
| Harding | S. J. & W. H. | Stapleton Farm, Cobens Soak, Kojonup | HX4 | 1924 |
| Harding | Thomas R. | Nelson Locs. 7008/9, Northcliffe | T0H | 1927 |
| Harding | Wm. | Lot 24, Brunswick, Brunswick | QG5 | 1925 |
| Harding River Pastoral Co. | - | Cooya-pooya, Roebourne | X7O | 1924 |
| Hardinge | H. M. | Eilendale Farm, Toodyay | 6KK | 1924 |
| Hardinge | Thos H. | Eilendale Farm, Toodyay | PM8 | 1924 |
| Hardinge Bros. | - | Dalby's Gully, Geraldton | XH1 | 1912 |
| Hardingham | A. W. | Almurta Farm, Bruce Rock | A0V | 1924 |
| Hardingham | Charles | Block 15177, New Carnie | H2U | 1912 |
| Hardingham | Chas. | Block 15177, Newcarne | H2U | 1924 |
| Hardison | J. R. | Glen Clyde, Kojonup | OK9 | 1924 |
| Hardisty | R. E. | Melgrove, Wagerup | Y5H | 1962 |
| Hardman | C. S. H. | Goodwins, Merredin | V8H and 54F, 15B | 1962 |
| Hardman | Chas. S. H. | Main Cr., Baandee | V8H | 1924 |
| Hardman | E. C. | Avon 14027, Merredin | 1UE and 14B, 6E | 1962 |
| Hardman | H. E. | Moningarin, Dowerin | T0H | 1912 |
| Hardman | H. E. | Moningarin, Dowerin | T0H | 1924 |
| Hardman | H. S. & E. | 13993, 14013, 13979, Burracoppin | NH8 and 80E, 5B | 1962 |
| Hardman | H. W. & J. M. | Peel Est. 400, 401, Serpentine | 0JH | 1962 |
| Hardman | J. H. | Goomarin Park, Merredin | 0JH and 3A, 109B | 1962 |
| Hardman | Tasman | Morningside, Belmont | T1H | 1926 |
| Hardman | W. R. | Avon Loc. 8796, Kellerberrin | Y4K | 1924 |
| Hardman | Wm. | Lezland Farm, Lower Warren Road, Jarnadup | RD4 | 1924 |
| Hardman & Sons | Wm. | Meadow Farm, West Grass Patch, Esperance-Norseman Road | 5QH | 1924 |
| Hardwick | F. S. | The Pines, Bencubbin | BH4 and 109D, 51F | 1962 |
| Hardwick | G. L. | Dundry, Korrelocking | GH6 and 48A, 24B | 1962 |
| Hardwick | H. G. V. | Gingermilli, Trayning | 0VH | 1912 |
| Hardwick | H. G. V. | Giggermilli, Trayning | 0VH | 1924 |
| Hardwick | Hy. | Baskerville, Upper Swan | 1HH | 1912 |
| Hardwick | Mrs Houslow | Loc. 15131, Mandiga | OG6 | 1924 |
| Hardwick | Roy Stanley | Fulwood, Mandiga | I6S | 1928 |
