| Rogers | S. C. | Oakabella Estate, Geraldton | S9R | 1924 |
| Rogers | S. G. | Block 78, 7-Mile, Peel Estate | 5XN | 1924 |
| Rogers | T. | Sunnyside, Brownhill | TR6 | 1912 |
| Rogers | T. | Sunnyside, Brownhill | TR6 | 1924 |
| Rogers | T. D. | H.A.A. 125/6 Welington 1001, Cookernup | D2R and 11C, 118E | 1962 |
| Rogers | T. V. | 17643, 17640, 13640, Corrigin | TR5 and 21B, 108E | 1962 |
| Rogers | Thomas D. | Rossmere, Serpentine | D2R | 1927 |
| Rogers | Thomas John | Avon Locs. 23693, 23640,18693, 23714, Karlgarin, Kondinin | 5JR | 1926 |
| Rogers | W. E. | Clear Hills Farm, Northam | W3R and 107B 18A | 1962 |
| Rogers | W. H. | Sunnyacers, Narrikup | 5JR and 23D, 56F | 1962 |
| Rogers | William | Hotham, Marradong | 0GR | 1912 |
| Rogers | William | Hotham, Marradong | 0GR | 1924 |
| Rogers | Wm. | Ninghan Loc. 134, Koorda | NX6 | 1924 |
| Rogers | Zachariah | Maestey Farm, Dudinin | Z2R | 1924 |
| Rogers & Son | H. S. | Killaloola, Boyup Brook | NH6 and 84D, 21E | 1962 |
| Rogers & Sons | - | Glenavon, Tammin | AR5 and 42B, 38A | 1962 |
| Rogers, Wynne & Edwards | - | Nenkeville, East Wagin | VR6 | 1924 |
| Rogerson | Robert | Cornubie, York | YR1 | 1924 |
| Rogerson & Co | - | Coolangatta, Mudtadgin | CG3 and 55F, 44D | 1962 |
| Rogie | Andrew Middleton | Yilgarn Locs. 741, Gimlet Forest Farm, Noongaar via Boddalin | A2R | 1926 |
| Rogie | John | Scolston, Pingelly | R5J | 1912 |
| Rogie | John | Scolston, Pingelly | R5J | 1924 |
| Rogors | A. M. | 2785, 1772, 595, 3520, 1934, 2521, West Dale, via Beverley | 1FR and 10C, 17E | 1962 |
| Rohaley | T. V. | Burnley, East Cuballing | 4TR | 1912 |
| Rohaley | T. V. | Burnley, East Cuballing | 4TR | 1924 |
| Rohrlach & Watkins | - | Brantwood, Dinninup | WR7 and 15B, 49A | 1962 |
| Rohrs | A. | Warperup Creek, Broomehill | AR4 | 1912 |
| Rohrs | A. | Warperup Creek, Broomehill | AR4 | 1924 |
| Roirdan | John | Woodside Dairy, Kalgoorlie | JR4 | 1912 |
| Roirdan | John | Woodside Dairy, Kalgoorlie | JR4 | 1924 |
| Rolfe | E. P. | Benaring, Bolgart | E9R | 1924 |
| Rolinson | Albert H. & Reg. B. | River View, Bayley Street, Midland Junction | N2R | 1924 |
| Rolinson & Co. | - | Hillman Park, Kalannie | 4MR and 6C, 49A | 1962 |
| Rolland | James White | Scotsdale, Lake Grace | R1S | 1926 |
| Romaior | A. & J. | Treeville, South Kumminin | A9R and 25D, 26E | 1962 |
| Romaior & Son | P. | Avon 18171-2, Narembeen | 5PR and 18B, 104A | 1962 |
| Roman Catholic Bishop of Geraldton | - | Glendale Farm, Northampton | B4G and 25B, 4E | 1962 |
| Roman Catholic Bishop of Geraldton | - | White Springs Station, White Springs via Port Headland | ZS4 and 45D, 115E | 1962 |
| Roman Catholic Church | - | 2898-9, Margaret River | BC1 and 118D, 30E | 1962 |
| Rome | J. J. | Swan Loc. 1372, Bindoon | 5HR | 1962 |
| Rome | Jno. | Dairy, Claremont. Boyadine, Beverley | 5HR | 1912 |
| Rome | John | Dairy, Claremont, Boyadine, Beverley | 5HR | 1924 |
| Romland | R. J. | Flannerdalle, Dongara | RJ1 | 1912 |
| Romland | R. J. | Flannerdale, Dongarra | RJ1 | 1924 |
| Rompaey | O. V. | Wellington Loc. 2063, Mumballup | NQ5 | 1924 |
| Romsden & Crossley | S. & P. H. | Clifton, Katanning | 0RP | 1912 |
| Ronald | A. B. C. | Netley Farm via Cranbrook | RN4 | 1912 |
| Ronald | Rowand | Uringara Farm, Dininup | 2RN | 1924 |
| Ronan | F. | 851, Jarrahdale | MR5 | 1962 |
| Ronan | John | Hill Grove, Geraldton | J2O | 1912 |
