| Hobbs & Treherne | W. S. C. & F. G. | Avon Locs. 26766-7-8, 26765 and 24879, Shackleton | 6HT and 113B, 57F | 1962 |
| Hobby | A. D. | Fitzgerald Locs. 423, 422, 426, 596, Circle Valley | H0B and 23A, 46B | 1962 |
| Hobby | A. H. | H. Farm, Ravensthorpe | HA0 | 1912 |
| Hobby | A. H. | Farm, Ravensthorpe | HA0 | 1924 |
| Hobby | M. K. (Mrs) | Loc. Fitzgerald 595, Salmon Gums | KH7 and 28B, 22E | 1962 |
| Hobby | Mary Jane | Loc. 9761, Nyabing | 4ZH | 1924 |
| Hobby & Marley | G. A. & B. | Sunnydale, Belmont | M0H and 114B, 4A | 1962 |
| Hobden & Son | H. E. | Thorndene, Wyalkatchem | HH3 and 50E, 39D | 1962 |
| Hobley | E. C. | Hobley's Farm, Nyabing | 9HY and 27B, 49E | 1962 |
| Hobley | G. T. | Mindarabin, Nyabing | GT9 and 119A, 37B | 1962 |
| Hobley | K. W. | Williams 11486, 12863, Nyabing, East Katanning | KH1 and 27B, 42E | 1962 |
| Hobson | R & M. M. | Locs. 2497, 2499, Courtney, Karridale | 0GH and 117B, 24A | 1962 |
| Hobson | W. R. | 2296, 2298, 4064, Osmington, via Margaret River | H9N | 1962 |
| Hobyknecht | Abel | Broomehill | 4AU | 1924 |
| Hocart | J. H. | Wellington, 15, 16, 17, 19, 35, Wokalup | V3P | 1962 |
| Hocart | J. P. | Wokalup | V3P | 1924 |
| Hockey & Sons | R. | Lindenlea, Emerald Downs, Killara Downs, Gibson | R4H and 104B, 104A | 1962 |
| Hocking | Arthur S. | Hsin Kuan, Tammin | AH5 | 1928 |
| Hocking | Ernest W. | Clearer Terrace, Belmont | KO4 | 1924 |
| Hocking | Fred. | Laurier siding, via Gnowangerup | U8H | 1924 |
| Hocking | H. | Smilie Farm, Wanneroo | H0K | 1912 |
| Hocking | H. | Smillie Farm, Wanneroo | H0K | 1924 |
| Hocking | John | Woodlands, Minnievale | H6O | 1912 |
| Hocking | John | Woodlands, Minnivale | H6O | 1924 |
| Hocking | Joseph | Loc. 9053, Minnivale | 3JU | 1924 |
| Hocking | Norman E. W. | Romany, Toodyay | X4H | 1924 |
| Hocking | W. R. | 2940, 2837, 3969, 1302, Mollerin | 6WH and 45B, 113E | 1962 |
| Hocking & Sons | A. S. | Hsin Kuan, Tammin | AH5 and 56F, 47B | 1962 |
| Hocking Bros. | - | Lillimur, Nungarin | 8KH and 116A, 6B | 1962 |
| Hocking Bros. | - | Quondong, Tammin | RH3 and 13C, 27E | 1962 |
| Hockley | D. W. | Loc. 5719, 155, 190, 191, Mt. Barker | DH3 and 42B, 19E | 1962 |
| Hockley | Samuel | Commonage, Bullfinch | 8BH | 1924 |
| Hockridge | R. W. | Hillview and Spring Field, East Bullsbrook | OUH and 84C, 56F | 1962 |
| Hockridge & Sons | T. M. | Glendonwyn, Cuballing | H0O and 14D, 30E | 1962 |
| Hodby | B. G. | Mingarell, Kojonup | 5BH and 46C, 42A | 1962 |
| Hodby | George | Lake View Farm, Tambellup | OY7 | 1924 |
| Hodby | K. W. | Timaru, Muchea | 2KM and 24B, 108E | 1962 |
| Hoddell | T. | Wellington, Cardiff, via Collie | XH4 and 80A, 14C | 1962 |
| Hoddell & Sons | L. | Huntley Park, North Collie | UH5 and 39B, 33A | 1962 |
| Hodder | A. J. | Coomba, The Lakes | L4K and 48D, 22E | 1962 |
| Hodder | George | Boolardy Station, via Yalgoo, Murchison | UH0 | 1924 |
| Hoddinott | Herbert H. | Yilgarn Loc. 188, Westonia | 6QG | 1925 |
| Hoddy | Andrew J. | Slurton Farm, Goomalling | A 7H | 1912 |
| Hoddy | Andrew J. | Slurton Farm, Goomalling | A7H | 1924 |
| Hoddy | Annie | Irishtown, Northam | 7XG | 1924 |
| Hodge | L. C. | Everton, Vic Loc. 7319, Gutha | 6LQ and 40A, 42C | 1962 |
| Hodge | Lionel Charles | Victoria Loc. 7319, Gutha | 6LQ | 1925 |
| Hodge | Theodore Heathcote | North Dandalup | T4H | 1926 |
| Hodge | W. T. | North Dandalup | XH0 | 1912 |
| Hodge | W. T. | North Dandalup | XH0 | 1924 |
