| 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 |
| Harley | Wm. | McAlindon, via Wilga | E5Y | 1924 |
| Harling | H. H. | Block 11409, Totadjin, Hines Hill | 8HG | 1912 |
| Harling | H. H. | Block 11409, Totadjin, Hines Hill | 8HG | 1924 |
| Harling | L . & P . E . | Morella, Belka | MH2 and 84A, 14C | 1962 |
| Harman | Frances | Holyoak, via Pinjarra | 4FO | 1924 |
| Harman | H . H . | Glenmore, Corrigin | JA1 and 19C, 28E | 1962 |
| Harman | Martha | Wanneroo | 7MH | 1912 |
| Harman | Martha | Wanneroo | 7MH | 1924 |
| Harman | N . | Hill Station, Broome | H4A and 36A, 115B | 1962 |
| Harman | R . H . | Marian Hills, Corrigin | RH7 and 53F, 36D | 1962 |
| Harmer | Ernest Edwin | Fitz. Locs. 362, 765, Salmon Gums | V8X | 1925 |
| Harmour | Horace | Rocky Valley, Piesse | J6V | 1924 |
| Harn | Percy & Alfred | Loc. 10764, Merilup, East Wagin | 8PA | 1924 |
| Harnett | H . | Lot 4, Roelands | P3H and 37A, 29B | 1962 |
| Harnett | Patrick | Worsley, Worsley | P3H | 1912 |
| Harnett | Patrick | Worsley | P3H | 1924 |
| Harnett | R . M . | Roelands Park, Roelands | 1GO and 3C, 45A | 1962 |
| Harnett | T. | Loc. 602, Dardanup | 4ZT | 1924 |
| Harper | C. C. | Loc. 271, Ongerup | 0DV | 1924 |
| Harper | Chas & Grasby W. | Ferndale, Balingup | HF2 | 1912 |
| Harper | Chas. | Woodbridge and Pyrton, Guildford | CH5 | 1912 |
| Harper | Chas. | Woodbridge & Pyrton, Guilford | CH5 | 1924 |
| Harper | D . C . | Lot 194, Pingelly | RT0 | 1962 |
| Harper | F . L . | Weedon Hill, Denmark | 5HP | 1962 |
