| Hadley | John E. | Orange Grove, Harvey | XH9 | 1924 |
| Hadley | S. | H. F. 20536/74, Maryvale, via Wonnerup | SY6 | 1924 |
| Hadley | W. R. | Block No. 11673, Yorkrakine | H9Y | 1912 |
| Hadley | W. R. | Block No. 11673, Yorkrakine | H9Y | 1924 |
| Hadley | Wm. | Bussleton | 6QH | 1924 |
| Hadlow | C. L. | Avon 10413, 17729, 21237, 10465, Quairading | CL0 and 45B, 15A | 1962 |
| Hadlow | E. H. & B. G. | 1641, 1642, Mt Helena | 9EH and 67D, 52F | 1962 |
| Hadlow | L. D. R. | Loc. 12613, Dangin | 5DR | 1924 |
| Hadlow | L. D. R. | Locs. 21613, 21614, Dangin | 5DR and 22B, 28A | 1962 |
| Hadlow | R. E. & I. D. | Avon 11602, Kwolyin | 5RH and 21A, 36B | 1962 |
| Hadlow & Co. | K. | Stone Haven, Kwolyin | K9H and 84B, 47A | 1962 |
| Haendel | C. H. | Rocky View, Narrogin | C7H and 26D, 120E | 1962 |
| Haeppauff | C. G. | Spring Grave, Katanning | 0CH | 1912 |
| Haeppauff | C. G. | Spring Grave, Katanning | 0CH | 1924 |
| Haese | K. D. | Grange View, Kulin | 3BL and 111B, 12A | 1962 |
| Haese | S. E. | Wattle Hill, Porongorups | BS5 and 8B, 43A | 1962 |
| Haese Bros. | - | Bonnyup, Mt Barker | ZK7 and 4A, 45C | 1962 |
| Haewkins | Henry | Wanneroo Road, Osborne Park | HH8 | 1924 |
| Haffner | J. L. | C. P. 14070/55, Mullewa | H5R | 1924 |
| Haffner | Jas. L | C. P. 14070/55, Mullewa | H5R | 1912 |
| Hagan | C. W. & R. E. | Swan Loc. 28, Lot 113, Bellevue | C6R and 30B, 44E | 1962 |
| Hagboom | A. R. | Hills Crest Farm, Ucarty, via Dowerin | 4RA | 1924 |
| Hagboom | E. C. | Fairview and Loc.20173, Lot No. 2, Dowerin | EH1 and 43C, 9A | 1962 |
| Hagboom | G. G. | Hillcrest, Dowerin | 4RA and 26E, 50B | 1962 |
| Hagboom | K. G. | Avon 26759, Dowerin | 4KH and 47D, 107E | 1962 |
| Hagboom | W. R. | Ridley, Dowerin | R2H and 28B, 103E | 1962 |
| Hageman | Wm. | Road View and Line View, Newlands | H2X | 1924 |
| Hagen | E. | Nickalup, Harvey | A0C and 38A, 1C | 1962 |
| Hagerty | J. J. | Clover Hill, Quairading | 3JY | 1924 |
| Hagerty | Mary | Termoy Downs, Kellerberrin | H3K | 1912 |
| Hagerty | Mary | Termoy Downs, Kellerberrin | H3K | 1924 |
| Hagg | A. | Bandawing, M. 1930-1, M.339, Piawaning | 8AH and 20B, 44A | 1962 |
| Haggarth | J. A. S. | Rockvale, Darkan | JS8 and 7D, 34E | 1962 |
| Haggerty | Arthur W. | Stirling, Collie Road, Kojonup | V7U | 1924 |
| Haggerty | E. D. | Woodville Farm, Kojonup | 5HD | 1912 |
| Haggerty | E. D. | Woodville Farm, Kojonup | 5HD | 1924 |
| Haggerty | L. B. | Murrayville, Mardella | 0HY and 40B, 50A | 1962 |
| Haggerty | Leslie H. | Rosemount, Kojonup | 6YL | 1924 |
| Haggerty | R. L. | Kojonup 6640, 5035, 6641, 3483, 5610, 7371, 3602, 4964, 4177, 4174, 5896, 4963, Kojonup | L9H and 31B, 108E | 1962 |
| Haggerty | S. W. | East Lynne, Jingalup | L1H and 50B, 84A | 1962 |
| Haggerty | W. B. | Kojunup | WH2 | 1924 |
| Haggerty | W. H. | Rose Mount Station, Kojonup | H6Y | 1912 |
| Haggerty | W. H. | Rosemount Station, Kojonup | H6Y | 1924 |
| Haggerty & Co. | H. E. | The Rock and Woodville, Kojonup | H6Y and 58F, 17C | 1962 |
| Haggerty & Co. | H. W. | The Clyde, Muradup, via Kojonup | HY0 and 116A, 37B | 1962 |
| Haggerty & Frederick | W. B. | Kojonup | WH2 | 1912 |
| Haggett | F. S. | Nannine | 4FH | 1912 |
| Haggett | F. S. | Nannine | 4FH | 1924 |
| Hagley Pty. Ltd. | - | Hagley, Tammin | SC5 and 45E, 13C | 1962 |
| Hahn | F. A. | 23 Ruby Street, North Perth | 0ZH | 1924 |
