| Jeffrey | H. B. | Iona (Block 203, 255), Thomsons Brook | 8HJ and 9B, 40E | 1962 |
| Jeffrey | J. A. | Rockville, Kudardup | J6V | 1962 |
| Jeffrey | J. V. | Runnymeade, East Pingelly | S1P and 11B, 55F | 1962 |
| Jeffrey | M. R. & A. F. | Victory Valley, Yuna | Z0J and 39D, 27E | 1962 |
| Jeffrey | W. L. & O. N. | Rocky Rise, Victoria Loc. 9464 & 9898, East Yuna | W4J and 26D, 10E | 1962 |
| Jeffrey & Co. | F. | Trretops, Waroona | BZ6 and 84C, 4A | 1962 |
| Jeffrey & Sons | - | Newleyine, Northam | P7P | 1924 |
| Jeffrey Bros. | - | Bosulval Grange, Wagin, East | 2JV | 1912 |
| Jeffrey Bros. | - | Bosulval Grange, Wagin East | 2JV | 1924 |
| Jeffrey Bros. | - | Stockdale, Fremantle | J1Y | 1962 |
| Jeffreys | G. G. | 1007 Spion-Kop, Toodyay | G9J and 50B, 17E | 1962 |
| Jeffries | G. F. | Summee Valley, Koojan | 4JV and 33D, 102E | 1962 |
| Jeffries | J. E. | Enfield Farm, Kununoppin | 3UJ | 1924 |
| Jeffries | J. E. | Loc. 11368-1, Kununoppin | 3UJ | 1962 |
| Jeffries | L. B. | Avon Loc. 11371-61, 14429-30, 13937, Kununoppin | JE1 and 42D, 28E | 1962 |
| Jeffries | M. J. | Carthews, Langs-fords, Lampards, Kununoppin | JU7 and 12A, 114E | 1962 |
| Jeffries | W. | Alwynne, Balbarrup | 9JY | 1912 |
| Jeffries & Co. | W. E | Mount View, Bencubbin | JX1 and 119E, 38D | 1962 |
| Jeffs | G. H. | Maryland, Jingalup | SR6 and 12D, 114E | 1962 |
| Jeitz | H. W. & E. C. | 1444, 1035, Esperance | 9JH and 15B, 3E | 1962 |
| Jellard | Peter | P.O. Carnarvon | E1J | 1927 |
| Jenaway | S. J. | 112 and 525 Jandakot A. A. Ptn., Canningvale | SJ6 and 45C, 116A | 1962 |
| Jenholm Grazing Co. | - | Wogarno Station, Mt Magnet | JN3 and 14C, 25A | 1962 |
| Jenkin | A. | Brynterion, Highbury | EJ9 and 35B, 10E | 1962 |
| Jenkin | C. D. | 9405, 4013 Sussex, Karridale | 0DJ and 8B, 115E | 1962 |
| Jenkin | C. J. McM | 1861-2, 2347, 3077, 1508, Wongan Hills | OJ7 and 35A, 44C | 1962 |
| Jenkin | J. T. E. | Elsward, Noggerup | 3KN and 39A, 19C | 1962 |
| Jenkin | James Chas. | Beaufort, Katanning | 7NO | 1924 |
| Jenkin | S. H. | Broomehill | SJ4 | 1912 |
| Jenkin | S. H. | Broomehill | SJ4 | 1924 |
| Jenkins | A. | Frog Park, Harvey | KJ8 | 1924 |
| Jenkins | Arthur Wm. | Fourth Street, Harvey | N6U | 1924 |
| Jenkins | D. & F. | Loc. 1255, Passionflora Loc. 62-3-4, Waroona | J50 and 32B, 50A | 1962 |
| Jenkins | Edwin | Brynteron, Highbury | EJ9 | 1926 |
| Jenkins | F. G. | Rock View, Kojonup | G4J | 1912 |
| Jenkins | F. G. | Rock View, Kojonup | G4J | 1924 |
| Jenkins | G. O. W. | Davilak, Elgin | 2JF | 1962 |
| Jenkins | Henry Jos. | Gibson's Soak, Esperance | 6NJ | 1924 |
| Jenkins | Henry Wm. | Nayodd Farm, Moora | Q9J | 1924 |
| Jenkins | J. A. | Morley Farm, Katanning | 9UX and 20B, 84E | 1962 |
| Jenkins | J. A. | 3503, Warinder, Bindi Bindi | J3J and 120B, 14E | 1962 |
| Jenkins | J. E. | Brooklyn, Goomalling | 3KN | 1924 |
| Jenkins | J. M. | Rudheath, Kurrenkutten | 7YJ | 1924 |
| Jenkins | J. R. | Nelson 12167, Bokerup, via Kojonup | J4J and 28D, 19E | 1962 |
| Jenkins | K. | Dunromin No. 733, Esperance | KJ0 and 90D, 120E | 1962 |
| Jenkins | L. H. C. | Drumree, Toodyay | JJ2 and 19C, 40A | 1962 |
| Jenkins | O. | Ponty-Monmouth and brooklands Ridgeway, Kalannie, Lowden and Darkan | OJ0 and 6C, 102E | 1962 |
| Jenkins | R. T. | Gleno, Bulgee | 4UR | 1924 |
| Jenkins | R. T. | Canning Loc. Lot 352 Clonlee, Gosnells | 0RJ | 1962 |
| Jenkins | S. | Brim Creek, Hall's Crekk | J5O | 1924 |
