| Haythornthwaite | J. P. | Buginee, Coroling | JH9 | 1912 |
| Haythornthwaite | J. P. | Buginee, Caroling | JH9 | 1924 |
| Haythornthwaite | P | Sunnyside, Quairading | 6HQ and 15D, 67E | 1962 |
| Haythornthwaite | R | Moorchip, Quairading | H3U | 1924 |
| Haythornthwaite | R. (jnr) | Verena, Quairading | 4RH and 67A, 37B | 1962 |
| Haythornthwaite | V. J. & R. | Reika, Quairading | 7VH and 19D, 84E | 1962 |
| Haythornthwaite | W. H. | Mecca, Quairading | ZH1 and 20A, 44B | 1962 |
| Haythornthwaite | W. J. | Blocks 5671, 5672, Quairading | 6HQ | 1912 |
| Hayward | Chas. T. | Terryville, Dardannup | 9TG | 1924 |
| Hayward | A. A. & P. B. | Victoria Locs. 7, 87, 5379, Dindiloa, via Geraldton | 6BH and 24B, 42E | 1962 |
| Hayward | B. E. | Rosegarth, Albany | 4BH and 44E, 32C | 1962 |
| Hayward | C. B. | Pentwyn, Dumblyung | 5BH and 44A, 71B | 1962 |
| Hayward | C. L. | Loc. K. Curtis Street, Osborne Park | NP6 | 1924 |
| Hayward | Chas. | Benley Farm, Cuballing | Y2V | 1924 |
| Hayward | F. J. | Victoria Locs. 1 and 33, Nabawa | F8D | 1962 |
| Hayward | F. J. & D. J. | Avon 22306, 17045, 81, 82, 252, Yoting | 8DH and 34B, 112E | 1962 |
| Hayward | J. H. | Lots. 77, 78, 81, Loc. Wellington 50A, Koyijekup Estate, Harvey | 7MH | 1962 |
| Hayward | R. P. | Riverton, Harvey | RH3 | 1912 |
| Hayward | R. P. | Riverton, Harvey | RH3 | 1924 |
| Hayward | Thomas, sen. | Bundidup, Mornington | 4TH | 1912 |
| Hayward | Thos. | Bundidup, Mornington | 4TH | 1924 |
| Hayward | Thos. Jun. | Bundidup, Mornington | 0TH | 1912 |
| Hayward | W. S. | Carbertup, Broomehill | SH6 | 1912 |
| Hayward | W. S. | Carbertup, Broomehill | SH6 | 1924 |
| Hayward Bros. | - | Marylella, Roslyn P.O.via Geraldton | 6BH | 1912 |
| Hayward Bros. | - | Marylella, Roslyn P. O. via Geraldton | 6BH | 1924 |
| Haywood | B. T. | Quarlin, Goomalling | 8BH and 48B, 106E | 1962 |
| Haywood | F. | Narrowlands, Armadale | F7H and 43B, 16E | 1962 |
| Haywood | F. G. | Midland Locs. 706, 707, 708, Goomalling | 2FH and 17C, 35E | 1962 |
| Haywood | Frank | Caribou, Kwolyin, via Kellerberrin | HX5 | 1924 |
| Haywood | H. | Locs. 14855/55, 7214/68, Goomalling | K4D | 1924 |
| Haywood | H. | Locs. 19407, 19410, 19411, 13449, Manmanning | IH1 and 45D, 49E | 1962 |
| Haywood | H. J. | M. 698, 694, 2252, 634, 709, 1386, 164 (Quarrelling), Goomalling | IJ6 and 44C, 24E | 1962 |
| Haywood | J. H. | Loc. 1318, Lot 76, Midland | 8IJ and 15B, 14A | 1962 |
| Haywood | J. L. | Fair View, Boyanup | 0LH and 12C, 43E | 1962 |
| Haywood | John | Mount John, Nunyle | J7H | 1912 |
| Haywood | John | Mount John, Nunyle | J7H | 1924 |
| Haywood | W. | Midland Locs. 706, 707, 708, Goomalling | WH6 and 14B, 8E | 1962 |
| Haywood | W. R. | Mount John, Toodyay | J7H and 13E, 33D | 1962 |
| Haywood | Wm. | Jurakine, Jurakine | WH6 | 1912 |
| Haywood | Wm. | Jurokine | WH6 | 1924 |
| Haywood | Wm. | Pootenup Siding | XW8 | 1924 |
| Hazelgrove | A. E. | Group 111, Northcliffe | I6W | 1928 |
| Hazelgrove | P. R. | Romford Farm, Northcliffe | I6W | 1962 |
| Hazell | K. M. | Avon 23154, Trayning | 7KH and 35B, 109A | 1962 |
| Hazelton | A. H. | Wyndage Dairy, Wokalup | V4M | 1962 |
| Hazlett | D. T. | Many Ts. Lake Pinjar | 0DH and 55F, 28C | 1962 |
| Hazlett | S. | Palm Spring, Halls Creek | WM4 and 4C, 16E | 1962 |
| Hazlett | S. A. | Granite Hill, Dalwallinu | 1NH | 1912 |
| Hazlett | S. A. | Granite Hills, Dalwallinu | 1NH | 1924 |
