| 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 |
| Harper | Frank E. | Dongarra Hotel, Dogarra | Z8E | 1924 |
| Harper | H . | Woodbridge, Rocky Gully | CH5 and 1C, 32A | 1962 |
| Harper | H. | Burlong Run, Northam | 8HN | 1912 |
| Harper | H. | Burlong Run, Northam | 8HN | 1924 |
| Harper | J . | Wandwindup (6310, 7398, 7442), Kojonup | OH6 and 39C, 28E | 1962 |
| Harper | N . W . | Thornlie, Kenwick | 0NH | 1962 |
| Harper | N. W. | Stoney Crossing, E. Brookton | N1H | 1912 |
| Harper | S . B . | Loc. 127, Nungarin | 5SU | 1962 |
| Harper | Sophy | N. D. Hotel, North Dandalup | SH9 | 1912 |
| Harper | Sophy | North Dandalup Hotel, North Dandalup | SH9 | 1924 |
| Harper & Co. | S . C . | Plant. 6026, Albany | S6H and 46C, 84E | 1962 |
| Harper & Co. | S . J . | Plant 5247, Youngs Siding via Albany | H2C and 60F, 36B | 1962 |
| Harper & Grasby, Catton | Chas. & W. | Ferndale, Baligup | HF2 | 1924 |
| Harper Bros. | - | Koorian, Gingin | 3HK | 1912 |
| Harper Bros. | - | Koorian, Gingin | 3HK | 1924 |
| Harridge | W. | Ballidu | 7VK | 1924 |
| Harries | W . M . & D . E . | Malvern Farm, Busselton | HT2 | 1962 |
| Harrington | C . M . | Wellington 2580-4-5, Darkan | CH1 and 4B, 43A | 1962 |
| Harrington | E . W . | Part 403, 727, 1537 Sussex, Margaret River | E9W and 29B, 67A | 1962 |
| Harrington | John W. | Avon Locs. 18326 and 24574, Narembeen | QX4 | 1925 |
| Harrington | K . M . | Sussex Locs. 2203, 2205, Cowaramup | YK2 | 1962 |
| Harrington | K . M . & R . A . | 3731, Regans Ford via Gingin | KH1 and 16D, 19E | 1962 |
| Harrington | L . V . | Tralee, Miling | VL1 and 102E, 47D | 1962 |
| Harrington | N . E . | Martinjinni, Miling | 5NH and 112A, 16B | 1962 |
| Harrington | R . D . & D . M . | White Dam, Wyening | W0H and 43B, 47E | 1962 |
| Harrington | W. | Ardatt, Newcastle | W0H | 1912 |
