| Hardwick | Thos W. | Oakford, Waroona | HW9 | 1924 |
| Hardwick | Thos. W. | Oakford, Waroona | HW9 | 1912 |
| Hardwick & Son | - | Giggermilli, Bencubbin | 0VH and 20C, 21E | 1962 |
| Hardwick Bros. | - | Rae Downs, Trayning | 3GR | 1924 |
| Hardwick Bros. | Henry | Baskerville, Upper Swan | 1HH | 1924 |
| Hardy | Geo. | The Falls, Upper CApel, Kirup | G6K | 1924 |
| Hardy | H. & A . I . | Windi Mere, Lake Grace | H9O and 120A, 18B | 1962 |
| Hardy | H. D. | Inniskeen,Cookernup | 9YR | 1928 |
| Hardy | H. T. | Boreo, Upper Blackwood | 4HH | 1912 |
| Hardy | H. T. | Boree, Upper Blackwood | 4HH | 1924 |
| Hardy | John | Cheremump, Carracerup, Salt River Mail | 6VH | 1924 |
| Hardy | R . H . | Avon Loc. 23956, 23599, 23972, 23997, Bendering | H9H and 113B, 67A | 1962 |
| Hardy | W . | Avon Loc. 16132, Bendering | HA5 and 44E, 39D | 1962 |
| Hardy | W . W . | 23765, Bendering | WH9 and 45D, 53F | 1962 |
| Hare | Margaret E. | Moondah, Gingin | MH4 | 1912 |
| Hare | Margaret E. | Moondah, Gingin | MH4 | 1924 |
| Harefield Ltd. | - | Harefield, Kojonup | 6HO and 80C, 22E | 1962 |
| Harewood | F . V . & P . M . | Pt.2 of 2239 & Pt. of Lot 41, Boyanup and Bunbury | FV1 and 102B, 84E | 1962 |
| Hargrave | L . L . | Loc. 622 Kent Road, Denmark | Y3E | 1962 |
| Hargraves | Geo. E. | Maida Vale, Guilford | G9E | 1924 |
| Hargreave | R. L. | Luncathchem Farm, Merredin | LO8 | 1912 |
| Hargreaves | Jos. D. | Glenfield, Bencubbin | Y3A | 1924 |
| Hargreaves | R. L. | Luncatchem Farm, Nungarin | LO8 | 1924 |
| Haris | Ann | 53 Helena Steet, Guildford | GH1 | 1928 |
| Haris | J. J., Senr. & Junr. | Grass Patch | J2H | 1928 |
| Haris | R. E. C. | Nogaa, Wubin | RH2 | 1928 |
| Harisson | A. T. | Woodstock, Brookton | 4AH | 1912 |
| Harisson | Jas | Roseneath, Kojonup | 5JH | 1912 |
| Harisson | John. J. | Mullugar Springs, Northampton | 4JJ | 1912 |
| Harisson | L. & H. V. W. | Blocks 10517/74, Cowcowing | LH0 | 1912 |
| Harisson | Leonard | Bibra Lake | 1HZ | 1912 |
| Harisson | S. & E. | Rock of Ages, Greenough | SE4 | 1912 |
| Harisson | T. H. | Leighton, Dooklakine | H4T | 1912 |
| Harisson | Thos. | Vasse River, Busselton | T7H | 1912 |
| Harisson | W. | Geraldton | H4W | 1912 |
| Harisson | Wm. | Narngulu, Greenough Flats | HN7 | 1912 |
| Harisson | Wm. | Dry Creek, Katanning | L3T | 1912 |
| Harisson | Wm. R. | Manor Farm, Northampton | H9N | 1912 |
| Harisson Bros. | - | Coyrecup, Katanning | H5T | 1912 |
| Harker | Jas. | Armadale farm, Yarloop | U0M | 1925 |
| Harkness | S . C . | Fairlawn& Seven Springs, Herne Hill & Chittering | XH7 and 15C, 38A | 1962 |
| Harkness & Leeming | - | Southern Brook, via Northam North | 8KL | 1924 |
| Harland | J . | Marjon, Gairdner River | H8J and 115E, 103B | 1962 |
| Harle | S . | 5566 & 8456, Victoria, Buntine | 4SH and 48D, 5E | 1962 |
| Harley | E . C . | Warrak, McAlinden, Noggerup | E5Y and 15D, 24E | 1962 |
| Harley | L . G . & D . M . | Black Wattle, Morawa | L7H and 35D, 118E | 1962 |
| Harley | L . J . | Wellington Loc. 3701, Bowelling | LR7 and 11D, 113E | 1962 |
| Harley | P . A . & E . B . | Newhaven, Koolanooka | 8PH and 46B, 6A | 1962 |
| Harley | R . | Sussex 2273 & 2274, Margaret River | YQ2 | 1962 |
| Harley | W . H & M . E . | Woodlands, Noggerup | 0GH and 80C, 6A | 1962 |
