| Stacy | N. & J. M. | Calecona, Marchagee | LR1 and 38B, 34A | 1962 |
| Stade | Louis | Glenmorrell, Katanning | JS9 | 1912 |
| Stade | Louis | Glenmorrell, Katanning | JS9 | 1924 |
| Stade & Sons | L. A. | Hillcrest, Katanning | JS9 and 19C, 25E | 1962 |
| Staer | G. A. | Cockburn Sound Loc. 689, Jarradale | S2R | 1962 |
| Stafford | A. | Mannierup, Mount Barker | AS1 and 6C, 53F | 1962 |
| Stafford | Alfred | Mount Barker | AS1 | 1928 |
| Stafford | Elma B. | Belgravia, Denmark | 5SU | 1924 |
| Stafford | G. M. | Avon 18710-1, Kondinin | U8J and 50D, 7E | 1962 |
| Stafford | Geo. | 7420/56 and 7421/56, Nanga Brook | S6G | 1912 |
| Stafford | Geo. | 7420/56 and 7421/56, Nanga Brook | SG6 | 1924 |
| Stafford | H. E. | Blocks 2116,2117, Belgravis, Denmark | 8ES | 1912 |
| Stafford | H. H. | How-Mar Station, Broome | 2HM and 35B, 3E | 1962 |
| Stafford | H. H. | Karlgarin Hill, Kondinin | KZ1 | 1962 |
| Stafford | H. J. | Mittagong, Geraldton | S9T | 1912 |
| Stafford | H. J. | Mittagong, Geraldton | S9T | 1924 |
| Stafford | H. N. | 1524, Gibson | H8S and 15B, 7E | 1962 |
| Stafford | H.E. | Blocks 2116, 2117, Belgravia, Denmark | 8ES | 1924 |
| Stafford | Henry Harold | Karlgarin Hill, Kondinin | KZ1 | 1924 |
| Stafford | J. S. | Glentine, Capel | ZS1 | 1912 |
| Stafford | J. S. | Glenfine, Capel | ZS1 | 1924 |
| Stafford | R. J. | Sussex Loc. 2506, Busselton | S9Z and 39D, 4E | 1962 |
| Stagboner | Geo. F, | Marlin, Marradong | 1GS | 1924 |
| Stagboner | Geo. F. | Marlin, Marradong | 1GS | 1912 |
| Stagboner & Son | - | Minlaton, Boddington | 1GS and 6D, 17E | 1962 |
| Stagg | W. N. | Alma, Nungarin | NS7 | 1912 |
| Stagg | W. N. | Alma, Nungarin | NS7 | 1924 |
| Stagg & Co. | R. E. | Lyncroft, Wongoondy | 6SE and 46C, 49E | 1962 |
| Stahl | F. J. F. | A.911, Denmark | 6JS | 1962 |
| Stain | H. W. & D. E. | 131, 210, 766-7-8, Mt Barker | HS6 and 47B, 16A | 1962 |
| Staines | T. | Lot 880, Gosnells | TS0 and 34C, 108E | 1962 |
| Stainton | Chas. R. L. | Bowgada | XK4 | 1924 |
| Staker | Evelynne | Sub. Block No. 357, Denmark | SZ5 | 1924 |
| Staker | Geo. | Homestead, Denmark | 8GS | 1912 |
| Staker | Geo. | Homestead Denmark | 8GS | 1924 |
| Stakovich | I. | Block 11403, Tatadjin | SV0 | 1912 |
| Stakovich | I. | Block 11403, Totadjin | SV0 | 1924 |
| Staley | G. F. | Elleburn, Ludlow | FS3 | 1962 |
| Staley | George F. | Ellerburn, Ruabon near Busselton | FS3 | 1927 |
| Stalker | B. A. | Sailly-le-Sec. Kirup | AZ8 | 1924 |
| Stalker | M. B. | Canning Loc. 681, Armadale | MT0 and 105D, 115E | 1962 |
| Stallard | Geoffrey | Tallingup, Thorne Hill | GS2 | 1912 |
| Stallard | Geoffrey | Tallingup, Thorne Hill | GS2 | 1924 |
| Stalley | Wm. | Peak Hill | S8E | 1924 |
| Stalley & Nalder | - | Mt. Pleasant, Peak Hill | S8E | 1928 |
| Stallwood | Wm. | Moulyinning | XZ9 | 1924 |
| Stamp | John | Springfield, Cranbrook | JZ0 | 1912 |
| Stamp | John | Springfield, Cranbrook | JZ0 | 1924 |
| Stanbrook | G. T. | Lttiedale, Bingeberring | LD5 | 1912 |
| Stanbrook | G. T. | Lottiedale, Benjaberring | LD5 | 1924 |
