| Roach | Samuel Geo. | Wellparks, Pithara | 1GQ | 1924 |
| Roach | W. | Avon 23057, Narembeen | W1R and 46D, 111E | 1962 |
| Roach | W. A. J. | Yawberrin, Bruce Rock | WR2 and 12D, 56F | 1962 |
| Rob | Alec | Hillyfields and Alma, Northampton | 1AR | 1912 |
| Rob | Alec | Hillyfields and Alma, Northampton | 1AR | 1924 |
| Rob | J. D. | Clear View, Northampton | 6RU and 18B, 116E | 1962 |
| Rob Estate of late | A. | Hillyfields, Northampton | 1AR and 3B, 13A | 1962 |
| Robartson | F. C. & D. M. | Avon 11053-4, Nangeenan | CZ0 and 29D, 117E | 1962 |
| Robartson | H. & D. | 10929. 11314-5. Pt. of 48, Nangeenan | H2R and 1C, 35A | 1962 |
| Robartson | Owen | Cobrico Farm, Nangeenan | OR2 | 1924 |
| Robartson | R. O. | Avon Locs. 19448, 24866, Nangeenan | RR5 and 33B, 13A | 1962 |
| Robartson | William | Farm No. 15209, Merredin | ND2 | 1926 |
| Robartson | Wm. | Mt Ida | RO6 | 1912 |
| Robartson | Wm. | Mt. Ida | RO6 | 1924 |
| Robb | D. | Victoria 10204, Eneabba, via Three Springs | 6RD and 13D, 31E | 1962 |
| Robb | Geo. M. | Stone Ridge, Wogerlin | GR0 | 1924 |
| Robb | O. S. & W. | 3905, Candoux | 0SR and 46B, 118A | 1962 |
| Robb | W. | Esperance Loc. 1489, Esperance | 6WR and 117D, 46E | 1962 |
| Robbins | Alfred F. | White House, Cuballing | VR8 | 1924 |
| Robe River Pastoral Co. | - | Yarraboola Station, Onslow | SU2 | 1924 |
| Robe River Pastoral Co. | - | Yarraloola Station, Onslow | SU2 and 18B, 4E | 1962 |
| Robe River Pastorial Co. | - | Yarraboola Station, Onslow | SU2 | 1912 |
| Robert | E. C. | Troubridge, Ucarty | ER7 | 1912 |
| Robert | E. C. | Troubridge, Ucarty | ER7 | 1924 |
| Robert | Edith Marian | Arundel Farm, Goomalling | E6O | 1924 |
| Robert | G. L. & N. J. | Tammaville, Goomalling | ER7 and 34C, 7A | 1962 |
| Robert | R. C. W. | Arundel, Goomalling | E6O and 44B, 116A | 1962 |
| Roberts | A. H. V. | Yilgarn 189-90-1-2, Walgoolan | 3AU and 18D, 106E | 1962 |
| Roberts | A. J. | Lots P5, P3, Northam | RA7 and 2C, 16E | 1962 |
| Roberts | A. L | A.1116, Denbarker, via Mibarker | 5RA and 84B, 53F | 1962 |
| Roberts | A. M. | Yilgarn Locs. 408, 416-7, 434 Southern Cross | AR1 and 9D, 39E | 1962 |
| Roberts | Alfred M. G. | Williams Loc. 10604, Merilup | Y4R | 1924 |
| Roberts | Amy Grace | Millar's Paddocks | C2V | 1912 |
| Roberts | Amy Grace | Millar's Paddocks, Karridale | C2V | 1924 |
| Roberts | B. A. | 10047-8, Northcliffe | UJ7 | 1962 |
| Roberts | B. R. F. | Avalon, Rocky Gully, via Mt. Barker | A7R and 1C, 10E | 1962 |
| Roberts | C. B. | Loc. 11169, Nannup | RO8 | 1962 |
| Roberts | C. R. | Maristow, Nyabing | R3N | 1924 |
| Roberts | Chas. B. | Stratham, Capel | R5O | 1924 |
| Roberts | Clarence | Rosemore, Capel | CR2 | 1912 |
| Roberts | Clarence | Rosemore, Capel | CR2 | 1924 |
| Roberts | D. | Briahgabby, Dandaragan | R8U | 1962 |
| Roberts | D. P. | Cuddarri, Gascoyne | DR1 | 1912 |
| Roberts | D. P. | Cuddari, Gascoyne | DR1 | 1924 |
| Roberts | D. R. | Dundee, Nelson Locs. 11203, 11193 Carlotta, via Nannup | 4RV | 1962 |
| Roberts | D. S. | 1979, Bussleton | 9GX | 1962 |
| Roberts | E. | Possum Park, Kojonup | ER3 and 10B, 43A | 1962 |
| Roberts | E. C. | Tregony Farm, Nannup | 9RX | 1924 |
| Roberts | E. C. | The HomeStead. Locs. 81000 and 81004, Cundenup | 9RX and 58F, 38D | 1962 |
| Roberts | E. H. | Sussex Loc. 8, Wonnerup | RO8 | 1924 |
