| Huxtable | E. | Chesterfield, East Rockingham | DV1 | 1912 |
| Huxtable | E. | Chesterfield, East Rockingham | DV1 | 1924 |
| Huxtable | R. H. B. & C. R. L. | 179 Kearne Rd, Forestdale | 4HL and 117D, 49E | 1962 |
| Huxtable | S. | Devonia, 10-Mile Well, East Rockingham | DV7 | 1924 |
| Hy-Brazil Pastoral Co. | - | Hy-Brazil and Iona Stations, Mt. Magnet | CD4 and 31B, 9A | 1962 |
| Hyat | Khan | Commonage, Port Hedland | h9k | 1912 |
| Hyat | Khan | Commonage, Port Hedland | H9K | 1924 |
| Hyde | Alice G. | The Grove, Buntine | 7GY | 1924 |
| Hyde | H. | Wanganui, Balingup Road | HH7 | 1928 |
| Hyde | J., J. & R. | Jameson Lot 1, Melbourne Loc. No. 3509, Norcia | J4H and 49A, 44B | 1962 |
| Hyde | J., J. & rR. | Damarosekay, Dalwallinu | 9JH and 116A, 38B | 1962 |
| Hyde | Norman F. | Waddy Waddy, Coorow | N1H | 1927 |
| Hyde | P. | Block 7549, Wagin | P0H and 19B, 114E | 1962 |
| Hyde | Rupert C. | Waddy Park, Coorow | 3GH | 1928 |
| Hyde | V. H. | 957, 1198, Waroona | VH6 and 31A, 37C | 1962 |
| Hyde & Sons | C. E. | Hyde Park, Dalwallinu | 3YH | 1924 |
| Hyde & Sons | E. | Hyde Park, Dalwallinu | 3YH | 1912 |
| Hyde & Sons | N. F. | Waddy Waddy, Raywood, Coorow | Z1H and 8D, 25E | 1962 |
| Hyde & Sons | W. H. | Hyde Park, Dalwallinu | 3YH and 4C, 19A | 1962 |
| Hyder | Wm. E. | Block Balbarrup Road, Bridgetown | Z8H | 1924 |
| Hyder & Abdul Suttar | - | Five miles North of Murrin Murrin, | HY5 | 1912 |
| Hyder & Beatty | - | Lot 5, Busselton | S8Y and 32D, 47E | 1962 |
| Hyder & Perroo | - | Goldfields, Coolgardie | HP3 | 1912 |
| Hyder & Perroo | - | Goldfields, Coolgardie | HP3 | 1924 |
| Hyder Bros. | - | Tamara, Boyanup | 5IY and 11B, 40E | 1962 |
| Hydre | L. | Browers Creek, Mt. Malcolm | L5K | 1924 |
| Hyland | G. M. | Dongolocking Park, Wagin East | H7G | 1912 |
| Hyland | G. M. | Dongolocking Park, Wagin | H7G | 1924 |
| Hymus | George F. | Sunny Vale, P. O. Wyalkatchem | 4GH | 1927 |
| Hymus | Grace E. | Camballing, Marradong | GE2 | 1912 |
| Hymus | Grace E. | Camballing, Marradong | GE2 | 1924 |
| Hynam | Chas. | Hynam's Farm, Bruce Rock | 5KY | 1924 |
| Hyne | C. R. | Yappara, Guildford | 6CH | 1912 |
| Hyne | C. R. | Yappara, Guildford | 6CH | 1924 |
| Hyne | J .V. & C. M. | Swan Loc. 1875, 2781, South Guildford | 6CH and 102C, 84E | 1962 |
| Hyne | R. R. | Loc. 5A, Lot 25, Lot 1352, Lot 1921, Upper Swan Muchea | 6RH and 44A, 49 B | 1962 |
| Hynes | B. R. & M. G. | Yenagin, East Pingelly | B7H and 44D, 7E | 1962 |
| Hynes | C. T. | Avonlea Loc. 669 Lot 4, Waterloo | 7DJ and 30D, 15E | 1962 |
| Hynes | E. | Karaim, Calingiri | 6NH | 1924 |
| Hynes | J. J. | Fir Park, Waterloo | O7C and 51F, 41D | 1962 |
| Hynes | J. J. | Erinore, Hyden | P0Y and 22B, 119E | 1962 |
| Hynes | J. J. | Erinore, Hyden | RD3 and 42D, 29E | 1962 |
| Hynes | L. A. | Loc. 669, Lot1, Waterloo | 7H9 and 19D, 53F | 1962 |
| Hyslop & Waugh | - | Hootanni G.M., Mulga Queen | 4HW | 1912 |
