| J2J Grazing Co. | - | 1751-2-3, 1914-5, 3188, 3189, 1902, Rosa Brook, via Margaret River | J2J and 25D, 67E | 1962 |
| Jachmann | F. C. | Block 1288, Jerrammungup | F6J and 117B, 12A | 1962 |
| Jack | Boy (Native) | Balladonia, via Norseman | VN2 | 1924 |
| Jack | H. | Kojonup Loc. 8292 and 6695, Nyabbing | X0J and 32D, 49E | 1962 |
| Jack | Jas. | Mingarry, Arthur River | J4A | 1912 |
| Jack | Jas. | Mingarry, Arthur River | J4A | 1924 |
| Jack | Norman C | Salmon Gums | GJ6 | 1928 |
| Jack & Son | J. K. | 14573, 15654-6-62, Bencubbin | JJ9 and 28C, 31A | 1962 |
| Jacka | W. J. | Loc. 13118, Kellerberrin | VJ2 | 1924 |
| Jacka | W. K. | 2630-1-4-7-8, Boallia, via Busselton | 2KJ | 1962 |
| Jackel | Mary Eleanor | Kent Loc. 283, Ongerup | X6J | 1924 |
| Jackman | E. | Lots 24, 25, 27 and 30, Gidgegannup | E7J and 17B, 31E | 1962 |
| Jackman | F. E. | Brooklyn, North Dandalup | DC7 | 1924 |
| Jackman | George B. | Carramarra, Moora | GJ1 | 1928 |
| Jackman | L. A. | Dandala, North Dandalup | DC7 and 7D,6E | 1962 |
| Jackovich | A. | 6210, 6197, 6015, Tardun | A2J and 42A, 4C | 1962 |
| Jackovich | R. | Locs.15300, Lot 2, 159, 291, 158, 13397, 22993, Shackleton | 1JV and 42D, 31E | 1962 |
| Jackson | A. | 13715-6 10753 Locs, Doodlakine | 1FJ and 10C, 14A | 1962 |
| Jackson | A. A. | Bridstone, Nannup | JB1 and 31A, 5B | 1962 |
| Jackson | A. E. & I. V. | Rockyvale, Wyalkatchem | A1J and 10B, 120E | 1962 |
| Jackson | A. G. | Fairview Farm, Dalwallinu | J9L and 23D, 8E | 1962 |
| Jackson | A. H. | Kent A. 1213, Gairdner River, via Jerramungup | A8J and 80B, 31A | 1962 |
| Jackson | A. J. | Sunnyhurst Orchard, Canning Mills | J5U | 1912 |
| Jackson | A. J. | Sunnyhurst Orchard, Canning Mills | J5U | 1924 |
| Jackson | Amy R. | G. L. 1754 /68, Greenhills | A0J | 1912 |
| Jackson | Amy R. | G. L. 1754//68, Greenhills | A0J | 1924 |
| Jackson | B. | Mourabine, Pingelly | BJ4 | 1912 |
| Jackson | B. | Mourambine, Pingelly | BJ4 | 1924 |
| Jackson | B. F. | Lot 9, Inering Estate, Carnamah | X4F | 1924 |
| Jackson | C. & V. | Burville, Oakabella | VJ3 and71C, 10E | 1962 |
| Jackson | C. E. | Chenar, Roelands | 0AE and 5B, 16E | 1962 |
| Jackson | C. G. & C. A. | West brook Farm, West Pemberton | O2W | 1962 |
| Jackson | C. O. | Meekatharra, via Nannine | C0J | 1912 |
| Jackson | C. O. | Meekatharra, via Nannine | C0J | 1924 |
| Jackson | C. P. | Preston Grange, Oakabella | 3JK and 34C, 38A | 1962 |
| Jackson | C. W. | Wood View, Tinkurrin, Harrismith | 2JV amd 71C, 10E | 1962 |
| Jackson | E. T. | Ungavo, Noggerup | Y4E | 1924 |
| Jackson | E. T. | 1021, Esperance | U6J | 1962 |
| Jackson | Edmund | York Farm, Kirk's Rock, Wickepin | 0KE | 1924 |
| Jackson | Ernest Wm. | Avon Loc. 18329, Yawerlin, via Bruce Rock | EY8 | 1924 |
| Jackson | F. | Mugava, Upper Preston | FJ2 | 1912 |
| Jackson | F. | Mugava, Upper Preston | FJ2 | 1924 |
| Jackson | F. W. | Woodlands, 7706-7-S, Dalwallinu | J3Q and 41D, 30E | 1962 |
| Jackson | G. D. | Carisbrook, Donnybrook | W9J | 1962 |
| Jackson | G. H. | Garden Vale, Menzies | GJ1 | 1912 |
| Jackson | G. H. | Garden Vale, Menzies | GJ1 | 1924 |
| Jackson | Geo. | Salmon Gully Farm, Beverley, East | X2J | 1924 |
| Jackson | H. | Woodland, Busselton | 4YJ | 1912 |
| Jackson | H. | Woodland, Busselton | 4YJ | 1924 |
| Jackson | H. H. | Mount View, Pemberton | J6Q and 55F, 106B | 1962 |
