| Swayne | A. R. | Brismead Loc. 2886, Yelverton | 7AS and 19C, 18E | 1962 |
| Sweeney | F. P. | River Bend, Walpole | ZP5 and 4C, 103E | 1962 |
| Sweeney | Geo. | Widgiemooltha | S8G | 1924 |
| Sweeney | George | Wedgiemooltha, Wedgiemooltha | S8G | 1912 |
| Sweeney | John | Homestead, Greenough | L1Z | 1912 |
| Sweeney | John | Homestead, Greenough | L1Z | 1924 |
| Sweeney | Joseph | Commonage, Paddington | 3JZ | 1924 |
| Sweeney | Sept. p. | Minnawarra, Dinninup | ZP5 | 1924 |
| Sweeny | H. J. | Stoneyhurst, Peak Hill | 4SA | 1912 |
| Sweeny | H. J. | Stoneyhurst, Peak Hill | 4SA | 1924 |
| Sweeting | C. A. | Belmont, Wagin | CS0 | 1912 |
| Sweeting | C. A. | Lalla Rookh, Port Hedland | E7O | 1912 |
| Sweeting | C. A. | Belmont, Wagin | CS0 | 1924 |
| Sweeting | G. G. & N. E. | 24926, Meckering | CS0 and 6B, 20A | 1962 |
| Sweetman | D. G. & M. | Rockvale, Arrino | XU0 and 102B, 51F | 1962 |
| Sweetman | H. J. W. | Rockdale Farm, Arrino | XA4 | 1924 |
| Sweetman | J. & E. | Fern Hill, Marradong | Z9J | 1924 |
| Sweetman | P. K. | Caloola, Caron | SK9 and 44C, 53F | 1962 |
| Sweetman | Percy | Williams Loc. 14041, Newdegate | NX8 | 1924 |
| Sweetman | R. & F. | Dallingwood, Armadale | NS0 and 108D, 45E | 1962 |
| Sweetman | T. H. & V. W. | Springvale, Arrino | TS2 and 36B, 39A | 1962 |
| Sweetman | W. B. | Arrino | W8S | 1912 |
| Sweetman | W. B. | Arrino | W8S | 1924 |
| Sweetser | Geo. | Moortvale, E. Broomehill | 7YS | 1924 |
| Sweney | Charles | Roe Loc. 706, Newdegate | ZO9 | 1925 |
| Swift | Chas. B. | Hathersage, Wongan Hills | 3SV | 1924 |
| Swift | G. & H. | Hathersage, Kondut | 3SV and 44B, 27E | 1962 |
| Swinbank | Wm. | Lillydale Estate, Wickepin | U9Z | 1924 |
| Swinbourn | J. M. | Luceernvale, Wooraloo | 7MS | 1912 |
| Swinbourn | J. M. | Lucernvale, Wooraloo | 7MS | 1924 |
| Swincer | A. T. & E. E. | A.464, Bindi Bindi | XS0 and 50B, 39A | 1962 |
| Swincer | Walter R, | Glenidol Farm, Pithara | W6V | 1924 |
| Swiney | G. J. A. | Norlup, Upper Blackwood | CM2 | 1924 |
| Swiney | Geo. J. A. | Kirup | 8FL | 1924 |
| Swiney & Co. | G. A. | Franklands, Frankland River | G5S and 9B, 15A | 1962 |
| Swingler | G. W. | Loc.16 Lot 23, Cockburn Sound | SW1 | 1962 |
| Swingler | Geo. | Southern River Road, Gosnells | 0XA | 1924 |
| Swinton | A. F. S. | Gap Well, Nannine | J3S | 1912 |
| Swinton | A. F. S. | Gap Well, Nannine | J3S | 1924 |
| Swithenbank | F. W. | Rockwell, Bilbarin | 7FS and 4B, 26E | 1962 |
| Swithenbank Bros. | - | Llanelly, Quairdading | 3SC and 44C, 37A | 1962 |
| Switsur | Geo. | Commonage, Mingenew | LN2 | 1924 |
| Sworn | H. R. | Loc. 9843, Kulinn | K0K | 1912 |
| Sworn | H. R. | Loc. 9843, Kulin | K0K | 1924 |
| Sworn | Robt. Cecil | Spoilbank, Bencubbin | RZ5 | 1924 |
| Syed | Sicander Shah | Marble Bar | 2SK | 1912 |
| Syed | Sicander Shah | Marble Bar | 2SK | 1924 |
| Sykes | E. | ST. Clair, Kondinin | 1ES and 13C, 48E | 1962 |
| Sykes | H. J. | Albans, Kondinin | YP9 | 1924 |
| Sykes | L. R. & D. D. | 527-8-9, 288, 637, Bodallin | LS6 and 17C, 118A | 1962 |
