| Hamilton | F. | Warwick Park, Berkshire Valley and Cheviot Hills, Moora | HR8 and 31D, 49E | 1962 |
| Hamilton | F. J. | Glen Iris | FH3 | 1912 |
| Hamilton | Gavin A. | Crowya Creck Loc. 2017, via Denmark | N6H | 1924 |
| Hamilton | I. B. | Rockdale, Bindi-Bindi | 1BH and 10A, 33B | 1962 |
| Hamilton | Jas. | Loc 775, Young's Siding | 9HJ | 1912 |
| Hamilton | John A. C. | 1 Macey Street, East Perth | KU5 | 1924 |
| Hamilton | John W. | Derby, West Kimberley | RZ7 | 1924 |
| Hamilton | L. W. | Kelmscott Locs. 109, 110, Kelmscott | LH2 and 48B, 24E | 1962 |
| Hamilton | R. A. | Plantagenet Loc. 1955, Bornholm, via Albany | H7A and 22D, 7E | 1962 |
| Hamilton | Richard | Warwick Park, Moora | HR7 | 1912 |
| Hamilton | Richard | Warwick Park, Moora | HR7 | 1924 |
| Hamilton | W. | Nelson Loc. 7377, Jardee | 2UN and 107D, 48E | 1962 |
| Hamilton | Wm. | Nelson Loc. 5628, Jarnadup | 2UN | 1924 |
| Hamilton & Harper | W., H. R. & C. W. | Windemurra, Paynesville | 0CX | 1924 |
| Hamilton & Harper | W., H. R. & C. W. | Outalpa, Mt. Magnet | FC2 | 1924 |
| Hamilton & Son | D. S. | Strathmoor, Kukerin | DH1 and 21C, 80A | 1962 |
| Hamilton & Son | G. A. | Crowya Creek Loc. 2017, via Denmark | N6H and 49C, 120E | 1962 |
| Hamilton & Stanley | - | Yandyarra, Whim Creek | 2UR | 1924 |
| Hamilton & Stanley | - | Yandyarra, via Roebourne | SK0 | 1924 |
| Hamilton Bros. | - | Coomelberrup, Katanning | 5RH | 1912 |
| Hamilton Bros. | - | Coomelberrup, Katanning | 5RH | 1924 |
| Hamilton Bros. | - | Warwick Farm, Moora | HR7 | 1925 |
| Hamilton Bros. | - | Warwick Park, Berkshire Valley and Cheviot Hills, Moora | HB9 and 21D, 21E | 1962 |
| Hamlet | William | Yuin | 9WQ | 1924 |
| Hamlin | E. W | Nantawarra, Tammin | 8ND and 8B, 29E | 1962 |
| Hamlin Bros. | - | Mica Hill, Manjimup | I9R and 24D, 117E | 1962 |
| Hamling | Geo. G. W. | Woodlands, Noggerup | 0GH | 1912 |
| Hamling | H. E. | Nugadong | K8E | 1924 |
| Hammer | F. H. | Group 8, Nelson Loc. 7943, Pemberton | 2UH | 1962 |
| Hammer | S. J. | Southern Cross | 0YZ | 1924 |
| Hammer | Samuel | Narrogin | XH3 | 1924 |
| Hammersley | S. A. | Rivoli, Woodside | A6V | 1924 |
| Hammersley | W. & V. | Bouninup, West Wagin | XM1 and 22D, 13E | 1962 |
| Hammill | Robert | Cremorno Dairy, Kalgoorlie | 1RH | 1912 |
| Hammill | Robt. | Cremorne Dairy, Kalgoorlie | 1RH | 1924 |
| Hamming | Albert L. | Talbot, Boundain | AY2 | 1924 |
| Hammond | A. L. G. | Hamrick, Moorine Rock | A1H and 11B, 42E | 1962 |
| Hammond | A. Q. & J. M. | 2432, 15477, 15478, 2383, 1506, 4650, 15476, Goomalling | 3AH and 27B, 111A | 1962 |
| Hammond | E. L. | Blocks 15605, 15606, Merredin | 5EH | 1912 |
| Hammond | E. L. | Blocks 15605, 15606, Merredin | 5EH | 1924 |
| Hammond | H. | Arrino | ZN2 | 1924 |
| Hammond | H. R. | Glenmore, Brunswick Junction | ZN2 and 7D, 4E | 1962 |
| Hammond | J. | Yalleen, Roebourne | HJ6 and 84C, 46A | 1962 |
| Hammond | J. Dean | Cuttening, Kellerberrin | 6DH | 1912 |
| Hammond | J. Dean | Cuttening, Kellerberrin | 6DH | 1924 |
| Hammond | James | Bendering via Wickepin. | H2O | 1912 |
| Hammond | James | Cumberland Farm, Jandakot | HJ7 | 1912 |
| Hammond | James | Bendering, via Wickepin | H2O | 1924 |
| Hammond | James | Cumberland, Kellerberrin | HJ7 | 1924 |
| Hammond | John | Commonage, Chidlows Well | 4XH | 1924 |
