| Leslie | W. A. & N. T. | Karratha Station, Roebourne | QC0 and 39A, 28C | 1962 |
| Leslie | Wm. Jas. | Brookside, Bull's Brook | WL3 | 1912 |
| Leslie | Wm. Jas. | Brookside, Bull's Brook | WL3 | 1924 |
| Leslie & Co. | R. K. | 1441, 3792-3-8-9, 3848, 3849, 3933, 6880, 6744, 6370, 7892, 5087, 9120, 8575, 18249, 17502, 17180, Kellerberrin | 6LL and 44A, 14C | 1962 |
| Lester | O. A. | Nelson Loc. 9678, Dean Mill | 1OL | 1962 |
| Letch | E. A. | Eadine, Clackline | EL5 | 1912 |
| Letch | E. A. | Eadine, Clackline | EL5 | 1924 |
| Letch | T. A. E. | Eadine, Clackline | EL5 and 116D, 4E | 1962 |
| Letch & Wilding | - | Locations 1023 and 1024, Wongan Hills | VL8 | 1924 |
| Letchford | E. | Rossmore, South Trayning | RL1 and 118A, 22B | 1962 |
| Letchford | Francis H. | Westcombe, Kojonup West | 3LF | 1924 |
| Letchford | H. G. | Sussex Loc. 759-60, 3018, Busselton | 7CD and 50C, 9A | 1962 |
| Letchford | Henry Geo. | Boyup Brook, Bridgetown | K7L | 1924 |
| Letchford | J. B. | Eureka, Carnarvon | L0J | 1912 |
| Letchford | J. B. | Eureka, Carnarvon | L0J | 1924 |
| Letchford | P. W. | Roxley, Bridgetown | PL5 and 42D, 44E | 1962 |
| Letchford | S. W. | Fairfield, Bridgetown | K7L and 13C, 31A | 1962 |
| Lethbridge | J. B. K. | Burekup | 7KL | 1927 |
| Lethbridge, King | C. G. | Brooklands, Harvey | 7KL and 55F, 17D | 1962 |
| Lethlean | A. B. | Roe Loc. 2217, 2363, 2212, Narembeen | AL0 and 71E, 16B | 1962 |
| Lethlean | Edw. R. | Avon Location 22426, Emu Hill | 4QX | 1924 |
| Lethlean | John | Nungarin | U2L | 1924 |
| Lethlean & Punshon | W. & R. J. | Colesbery Farm, Yorkrakine | L8O | 1912 |
| Lethlean & Punshon | W. & R. J. | Colebury Farm, Yorkrakine | L8O | 1924 |
| Lethleen | J. E. | The Grange, Minnievale | 9LJ | 1912 |
| Lethleen | J. E. | The Grange, Minnievale | 9LJ | 1924 |
| Lethridge | E. A. K. | Tregeare, Newtown | 7KL | 1912 |
| Lethridge | E. A. K. | Tregeare, Newtown | 7KL | 1924 |
| Letter | A. A. | Venis Dale, Katanning | L7A and 29E, 114D | 1962 |
| Letts | A. | 51 Howard St., Fremantle | LA5 | 1912 |
| Letts | A. | Howard Street, Fremantle | LA5 | 1924 |
| Leuba | C. C. & F. E. | Kojonup Locs. 7374, 6303, Redcliffe | C6L and 116D, 17E | 1962 |
| Leuba | W. G. | Avon 14030, Burracoppin | V3L and 41B, 120E | 1962 |
| Leusciatti | G. & L. | 7693, Kojonup | G2L and 25B, 15E | 1962 |
| Levaux Bros. | - | Rosedale Farm, Nungarin | LV5 | 1912 |
| Levaux Bros. | - | Rosedale Farm, Nungarin | LV5 | 1924 |
| Levells | R. J. | Edmund, Onslow | RJ3 | 1912 |
| Levells | R. J. | Edmund, Onslow | RJ3 | 1924 |
| Leveson-Gower | G. C. & R. E. | Burnside, Popanyinning | C1G and 3B, 23E | 1962 |
| Levett | R. W. | Sunview Farms, Koorda | R4L and 6B, 47E | 1962 |
| Levett | T. W. | Riverview Farm, Walkaway | T5L and 45D, 17E | 1962 |
| Levett | Wm. | Clarence Townsite, Coogee | WL0 | 1912 |
| Levett | Wm. | Clarence Townsite, Coogee | WL0 | 1924 |
| Levett | Wm. R. | Nr. Nabagee, Walkaway | W6L | 1912 |
| Levett | Wm. R. | Near Nabagee, Walkaway | W6L | 1924 |
| Levett Bros | - | Riverview East, Walkaway | H5L and 114E, 44C | 1962 |
| Levine | Victor E. | Emu Hill, Via Bruce Rock | VE8 | 1924 |
| Levis | J. W. | Roe Loc. 1145-6-7, Holt Rock, via Newdegate | 5LS and 114A, 28B | 1962 |
| Levitt | J. G. | Woodland Home, Doodlakine | GL5 | 1912 |
| Levitt | J. G. | Woodland Home, Doodlakine | GL5 | 1924 |
