| Leece | S. A. V. & L. T. | Trickle Creek, Parkerville | LE0 | 1962 |
| Leeder | David L. | Rose Farm, Toodyay | 1DL | 1924 |
| Leeder | E. H. | Irvington, Cunjardine | EL0 | 1924 |
| Leeder | K. A. | Kent. Loc. 1352, Ongerup | KL0 and 38B, 48E | 1962 |
| Leederville Municipal Council | - | Norfolk Street, Leederville | L3D | 1924 |
| Leedman | Lous | Location 6517/58 and 18961, Shackleton | V5L | 1924 |
| Leeds | F. A. & Co. | Abydos Station; Port Hedland | K0H | 1928 |
| Leehan | Jas. | Warren Districts, East Brook, Manjimup | 2LN | 1924 |
| Leehey | John | Mebbain Station, Via Peak Hill | 5UL | 1924 |
| Leeke & Son | A. G. | Rheola, Koorda | 1UA and 39C, 18E | 1962 |
| Leeman | Herbert F. | Yilgarn Loc. 194, Walgoolan | 5LQ | 1925 |
| Leeman | N. (Mrs) | Avalon, Walgoolan | N5L and 7C, 43A | 1962 |
| Leeming | G. V. & W. I. M. | 4915, 8150-1, 5275, 3690-6, Dalwallinu | M6A and 11B, 25A | 1962 |
| Leeming & Son | - | Ullaring Rock, Southern Brook, via Northam | 8KL and 17C, 4E | 1962 |
| Lees | A. & S. | Nelson Locations 7586, 5192, Windypoint, Fly Brook, Via Pemberton | YQ1 | 1924 |
| Lees | S. G. | 1130, 4416, Harvey | SL3 and 3B, 105E | 1962 |
| Lees | T. W. | Wattle Banks Farm, Kwelkan | T9L | 1924 |
| Leeson | A. E. | Haresfield, Wannamel | 9LE | 1924 |
| Leeson | D. | Kiola, Wickepin | EM0 and 8D, 7E | 1962 |
| Leeson | P. W. & M. A. | Jibberding via Wubin | J0X and 36B, 25E | 1962 |
| Leeson | R. H. | Jennacubine | 6HL | 1924 |
| Leeson | R. J. | Part T 8 Part V Gwambygune, Goomalling | RJ7 and 107A, 19C | 1962 |
| Leeson | Samuel | Bradgote, Wannamel | 7EL | 1924 |
| Leeson & Co. | T. P. | Adair, Goomalling | LP0 and 6B, 117A | 1962 |
| Leeson & Son | P. W. | Jenna, Jennacubbine | 0HL and 17C, 19E | 1962 |
| Leeson & Sons | J. H. | Sunnymede and And Mayfield, Cunderdin and Meckering | JL0 and 107A, 17B | 1962 |
| Leete | J. C. B. & H. M. | Bamboo Springs, via Meekatharra | 1UC and 1C, 118A | 1962 |
| Lefroy | C. M. & A. M. | Woodrakarra, Manjimup | 1LW and 119D, 19E | 1962 |
| Lefroy | De Courey G. | Sautry, Wolwooling | L7S | 1924 |
| Lefroy | E. H. B. | Coora, Cranmore Park, Walebing | D3T | 1924 |
| Lefroy | Emily | Onslow Creek, Carnarvon | HL2 | 1924 |
| Lefroy | F. E. | Warraora Station, Carnarvon | 4FL | 1924 |
| Lefroy | F. E. & E. J. | Ningaloo Station, Carnarvon | 7FY and 2C, 30A | 1962 |
| Lefroy | J. | Finbar, Dalaroo-Midland Railway | J0L | 1926 |
| Lefroy | J. | Ellavalla Station and Locs. 2415, 5332, 5459, 5331, 4558, Carnarvon and Williams | 2LE | 1962 |
| Lefroy | J. S. B. & L. V. & E. H. | Walebing, Walebing | 2LY and 38A, 22C | 1962 |
| Lefroy | Jeffry | Warraora Station, Carnarvon | Q5L | 1924 |
| Lefroy | John R. G. | Ella Valla Station, Carnarvon | CM8 | 1924 |
| Lefroy | L. | Boolardy, Yalgoo | 2LL | 1924 |
| Lefroy | P. B. | Hillview, Chittering | 2LL and 15B, 10A | 1962 |
| Lefroy | P. deC. | Cashmere Downs Station, via Sandstone | UE7 and 39C, 33E | 1962 |
| Lefroy | R. B. | Craigie Lea, Waterloo | H0C and 12C, 28E | 1962 |
| Lefroy | T. H. M. | Cloverdale, Northam | TL7 and 21B, 106E | 1962 |
| Lefroy | W. G. | Yanyeareddy, Carnarvon | OY1 | 1924 |
| Lefroy | W. G. | Yanyeareddy, Carnarvon | YX! | 1924 |
| Lefroy | Wm. G. | Yuinmery Station, Youanmi | Y7X | 1924 |
| Lefroy | Wm. Gerald | Carramarra, Moora | YX7 | 1924 |
| Lefroy & Co. | E. H. B. | Colvin, Round Hill | D3T and 38C, 25E | 1962 |
| Lefroy & Son | E. J. | Exmouth Gulf Station, Learmonth | 1XU and 50A, 7C | 1962 |
| Lefroy Bros. | - | Yuinmery Station, Youanmi | Y7X and 115B, 11A | 1962 |
