| Hastings | W. J. | Warraling, via York | S7S | 1924 |
| Hastings | W. J. & D. | Warraling, Mawson via York | S7S and 71D, 23E | 1962 |
| Hastings | Wm. | Craigie Farm, Wanneroo | 8WZ | 1924 |
| Hastings & Co | R. W. | Kojonup Locs 6846-9, 5602, 3659, 5405, 3024, Kojonup | HR3 and 34C, 6E | 1962 |
| Hatch | Arthur F. | Yale Road, Canning Vale | AH0 | 1928 |
| Hatch | C. | Sunnydale, Maddington | 4HC and 4C, 107E | 1962 |
| Hatch | C. W. | 62, 246-7, Mt Helena | H9G and 102C, 108A | 1962 |
| Hatch | Geo. | Fernmore, Gingin | TF3 | 1912 |
| Hatch | Geo. | Fernmore, Gingin | TF3 | 1924 |
| Hatch | Jane | Holmebrooke, Kelmscott | I6B | 1928 |
| Hatch | R. J. | Easingwald, Bibra Lake | H7H and 21D, 31E | 1962 |
| Hatch | R. L. | 87 Affair Street, Southern Cross | RH0 and 13A, 5B | 1962 |
| Hatch | S. J. | Roselea, Eradu | 8HT and 19C, 35E | 1962 |
| Hatch | Wm. | Lyons River, Gascoyne | 2UP | 1912 |
| Hatch | Wm. | Lyons River, Gascoyne | 2UP | 1924 |
| Hatch & Co. | G. | Swan Locs. 766-769, 372, Maidavale | GH5 and 39B, 10A | 1962 |
| Hatch & Sons | W. | Whadonga, Oakabella via Geraldton | 0JN and 36B, 30A | 1962 |
| Hatch Bros. | - | Merlinleigh, Carnarvon | B1D | 1924 |
| Hatcher & Sellers | - | Walkenvile, Isseka | HS2 | 1927 |
| Hatfield | A. H. S | Kimberley Downs, North Walpole | G4T and 33E, 12D | 1962 |
| Hatfield | C. H. | Locs 34 and 35, roleystone | 0KH | 1962 |
| Hatfield | Daniel Hy. | Commonage, Broome | ZW5 | 1924 |
| Hatfield | H. | Kellerberrin | H8K | 1912 |
| Hatfield | H. | Kellerberrin | H8K | 1924 |
| Hatfield | H. | Locs. 600, 597, 599, 782, 786, Serpentine | H8K and 50C, 26E | 1962 |
| Hatfield | H. H. & L. | Avon Locs. 16969, 21684, 16975, 16973, | 7HH and 51F, 13D | 1962 |
| Hatfield | S. H. S. | Kimberley Heights, North Walpole | ZW5 and 39D, 108E | 1962 |
| Hatfielld | G. A. & E. J. | Dleitah, Boddington | GE2 and 31B, 48A | 1962 |
| Hathaway | A. C. & D. A. | Sunnydale, Kweda via Brookton | 9AC and 3B, 10A | 1962 |
| Hathaway | D. J. | 23821, 25792, Bulyee | NH1 and 43D, 43E | 1962 |
| Hathaway | J. H. | Waylands, Bulyee | JH5 and 34B, 54F | 1962 |
| Hathaway & Co | A. J. & R. J. | Ning 1862, 1949, 1888, 1129, Kalannie | AH8 and 30A, 19B | 1962 |
| Hathaway & Co | A. J. & R. J. | Ning 2169, 2168, 1008, Kalannie | HJ1 and 27B, 42A | 1962 |
| Hatherly | J. E. | Kokarrup, Arthur River | 0HP and 11D, 37E | 1962 |
| Hathway | Alfred J. | Over Park, Xantippe, Dalwallinu | AH8 | 1927 |
| Hatten | Thomas | Little Britain, Muchea | TH7 | 1912 |
| Hatten | Thos. | Little Britain, Muchea | TH7 | 1924 |
| Hatton | E. E. | Kent Loc.1407, Gairdner River via Jerramungup | E3H and 38B, 14E | 1962 |
| Hatton | Hy. Wm. | Hillview Farm, Dalwallinu | O9N | 1924 |
| Hatton | Thos. | Sunlight Farm,Goomalling | 1XH | 1912 |
| Hatton | Thos. | Sunlight Farm, Goomalling | 1XH | 1924 |
| Hatty | William | Cundarring, Wagin | 7HY | 1912 |
| Hatty | William | Cundarring, Wagin | 7HY | 1924 |
| Hatwell | M. & A. V. | Gemeleigh, Dowerin | 2HH and 26B, 16E | 1962 |
| Hatwell Bros. | - | Gameleigh, Dowerin | 2HH | 1924 |
| Hatwell Bros. | Jos. Walter | Prydell Farm, Coomberdale | 6JU | 1924 |
| Haub | Mrs A. | Lakeside, Waroona | 3AH | 1924 |
| Haub | Mrs. A. | Lakeside, Waroona | 3AH | 1912 |
| Haub | Otto | Lake View, Waroona | Q0H | 1924 |
| Hauser | E. M. W. | 1295-1763, Ridge Hill | E6H and 19E, 102E | 1962 |
