| Suell | Cyril L. | Avon Loe. 14138, Muckinbudin | QZ5 | 1924 |
| Suffield | J. W. | Marionup Station, Serpintine | Y7S | 1924 |
| Suffolk | Ernest H. | Yerupin, via Kellerberrin | 7EV | 1924 |
| Suffolk | Frank. | Loc. 15322, Mokami, via Kellerberrin | P5F | 1924 |
| Sugars | Jas. | Ascot Vale Estate, Belmont | 9JZ | 1924 |
| Sugg | Bentham | Lincoln Farm, Bullock Hills, East Wagin | 3SU | 1924 |
| Sugg | C. & M. | Dingo Dell, Kukerin | 4SF | 1924 |
| Sugg | C. R. | Tyrone Farm, East Wagin | ZU8 and 102C, 12A | 1962 |
| Sugg | E. & A. | Elliot Springs, Woodanilling | SE0 and 51F, 47D | 1962 |
| Sugg | F. J. | Water Rock Farm, Lake King | 1SG and 37D, 120E | 1962 |
| Sugg | I. M. | Salmon Dale, Newdegate | BS1 and 18D, 41E | 1962 |
| Sugg | Isaac | Eliot Springs, Woodanilling | SE0 | 1912 |
| Sugg | Isaac | Eliont Springs, Woodanilling | SE0 | 1924 |
| Sugg | J. I. | Rock View, Woodanilling | JS0 and 80D, 5E | 1962 |
| Sugg | L. W. | Happy Valley, Woodanilling | LS4 and 29B, 46A | 1962 |
| Sugg | M. | Dingo Dell, Kukerin | 4SF and 116D, 22E | 1962 |
| Sugg | W. T. | Thistle Hill, Roe Loc. 1527, Lake King | S5T and 26D, 49E | 1962 |
| Sugg Bros. | - | Tyrone Farm, East Wagin | ZU8 | 1924 |
| Suiter | R. J. | Karmarla, Moorine Rock | 4RS and 43D, 20E | 1962 |
| Sukroo | A. E. | 8137, 8825, 8140, 8658, Tinkurrin | 9ES and 38C, 57F | 1962 |
| Sukroo | N. C. R. | Block 13388, Tinkurrin, via Narrogin | 4CS and 29B, 19A | 1962 |
| Sullivan | A. H. | Nelson Loc. 3502, Yornup | 4AU | 1962 |
| Sullivan | Bob | Mt. Ida | Kv6 | 1924 |
| Sullivan | D. J. | Locs. 12703, 17320, 10673, 25545, 25116, 18201, 17592, 22002, KAA 135, Pantapin | 0JO and 57F, 17B | 1962 |
| Sullivan | D. J. | Two Rivers, Loc. Nos. 2625, 2519, 2632, 2520, Kojonup | 8SY and 46B, 109E | 1962 |
| Sullivan | D. P. | Homenush, East Dumbleyung, and at Lomas Street, Cottesloe | SY8 | 1924 |
| Sullivan | Daniel | Gangin Valley, East Pingelly | 1DS | 1912 |
| Sullivan | Daniel | Gaugun Valley, East Pingelly | 1DS | 1924 |
| Sullivan | Daniel | Shotts, near Collie | D6Z | 1924 |
| Sullivan | E. A. | Eagle Rest, Kojonup | 5EA | 1962 |
| Sullivan | Isabel M. | Avon Loe. 19306, Graball | N8Z | 1924 |
| Sullivan | J. | Rocky Glen, Beverley | 0JO | 1924 |
| Sullivan | J. D. | Rocky Glen, Beverley | OJ0 | 1912 |
| Sullivan | J. D. | Avon Loc. 20764, Burracoppin | 7QE | 1924 |
| Sullivan | Louis | Canningdale, Perth - Albany | LS8 | 1912 |
| Sullivan | Louisa | Canningdale, Perth-Albany Road | LS8 | 1924 |
| Sullivan | M. J. | Oakly Grange, Cubaling | 8KQ and 7C, 112E | 1962 |
| Sullivan | Mary | Shotts Mine, via Collie | NZ9 | 1924 |
| Sullivan | P. R. | Eaglerest, Kojonup | C0Y and 37D, 53F | 1962 |
| Sullivan | Patrick F. | Fitzgerald Loc. 846, Grass Patch, Esperance | 3QY | 1925 |
| Sullivan | R. & M. | Crawley Chase, Orchid Valley, via Kojonup | SR8 and 34C, 102A | 1962 |
| Sullivan | R. J. & C. M. | 16842-3, 26832, 25009, 20227-8, 267561, 18449, Pantapin | 2SU and 10C, 119E | 1962 |
| Sullivan | R. W. | Amanzi M. Kulu, West Arthur | C0Y | 1912 |
| Sullivan | R. W. | Amanzi M. Kulu, Weast Arthur | C0Y | 1924 |
| Sullivan | R. W. | Eagle Rest, Kojonup | 5UL | 1962 |
| Sullivan | Timothy | Commonage, Bunbury | SU3 | 1924 |
| Sultan | - | Commonage, Port Hedland | S9L | 1912 |
| Sultan | - | Commonage, Pt. Hedland | S9L | 1924 |
| Sumich | M. | H. 26-7-8, West Swan | M6S and 26B, 25E | 1962 |
| Summer | W. | Warren River, Katanning | 9WS | 1912 |
