| Lockhart Bros. | - | Baladong Farm, Wickepin | L4K | 1924 |
| Lockhead | W. J. McK. | Hill Tarvit, Mt. Hardy | 6YV | 1924 |
| Lockton | Henry | Hillend, Narrogin | HL3 | 1912 |
| Lockton | Henry | Hillend, Narogin | HL3 | 1924 |
| Lockton | I. R. | 2691-2-3 Sussex, Busselton | 1RL | 1962 |
| Lockwood | Edmund S. H. | Mangaroon Station, Via Carnarvon | LE3 | 1924 |
| Lockwood | John H. J. | Hill View, Spearwood | 6QL | 1924 |
| Lockwood | William A. | Riverside, Newton | ZL9 | 1924 |
| Lockwood & Panckridge | C. R. H. & F. C. | Merndal, Ballidu | LP1 | 1927 |
| Lockyer | A. B. | Lockyer's Estate, Goomalling | A1L | 1912 |
| Lockyer | A. B. | Lockyer's Estate, Goomalling | A1L | 1924 |
| Lockyer | A. E. | Hampton Farm, Northam | K1L | 1912 |
| Lockyer | A. E. | Hampton farm, Northam | K1L | 1924 |
| Lockyer | A. M. B. | Goomalling, Goomalling | A7L | 1912 |
| Lockyer | A. M. B. | Goomalling | A7L | 1924 |
| Lockyer | Albert Junior | Ninghan Location 868, Koorda | QL8 | 1924 |
| Lockyer | Arnold B. | Oakfield, Goomalling | AL1 | 1912 |
| Lockyer | Arnold B. | Oakfield, Goomalling | AL1 | 1924 |
| Lockyer | Arthur E. B. | Mt. Enid Station, Roebourne | 1AL | 1912 |
| Lockyer | Arthur E. B. | Deepside Station, Via Onslow | C0E | 1924 |
| Lockyer | Arthur E. B. | Arlock Springs Station, Mt. Enid Station, Roebourne | S6Z | 1924 |
| Lockyer | C. A. & J. B. | 2078, 2838, 3686, Wellington Mills, via Dardanup | 1JL and 43C, 9E | 1962 |
| Lockyer | E. S. | Part Avon Loe.R.Q. and 8, Northam | 3EL | 1912 |
| Lockyer | E. S. | Part Avon Location R.Q. and 8, Northam | 3EL | 1924 |
| Lockyer | Edw. B. | Riverside, Goomalling | E1L | 1924 |
| Lockyer | Edwd. B. | Riverside, Goomalling | E1L | 1912 |
| Lockyer | F. | Tabba Tabba, Port Hedland | KL6 | 1924 |
| Lockyer | G. | Yalleen Station, Onslow | K0C | 1962 |
| Lockyer | G. G. B. | Goomalling, Goomalling | G1L | 1912 |
| Lockyer | H. B. | Part Loc. 28R, Northam | 1XH and 9D, 32E | 1962 |
| Lockyer | H. J. B. | Goomalling, Goomalling | 7HL | 1912 |
| Lockyer | H. J. B. | Goomalling | 7HL | 1924 |
| Lockyer | J. L. | Kelmscott, Kelmscott | 0CL | 1912 |
| Lockyer | J. L. | Kelmscott | 0CL | 1924 |
| Lockyer | Jos. B. | Goomalling, Goomalling | 7JL | 1912 |
| Lockyer | Jos. B. | Goomalling | 7JL | 1924 |
| Lockyer | L. J. | Avon loc. 14267, Trayning | 6LL and 6A, 18B | 1962 |
| Lockyer | M. C. & S. C. | Avon 27120, Yealering | N1B and 36B, 48E | 1962 |
| Lockyer | M. J. | Tackenup, 4497, 1215, 4710, Napier | 4WF and 14D, 104E | 1962 |
| Lockyer | N. E. & N. C. | Locksely, Hyden | N4L and 40B, 105A | 1962 |
| Lockyer | Sarah Jane | Chatham Farm, Goomalling | Y0L | 1924 |
| Lockyer | W. A. | Wanabin, Goomalling | 6AL and 41E, 31B | 1962 |
| Lockyer | Wm. | Roebourne, Roebourne | L0C | 1912 |
| Lockyer | Wm. | Roebourne | L0C | 1924 |
| Lodge | A. B. | Marley, York | L2A | 1924 |
| Lodge | A. C. | Lot 3 Ptn Avon Loc. U., York | L2A and 37C, 6A | 1962 |
| Lodge | F. | Elemore, Koorda | F8L and 84A, 6B | 1962 |
| Lodge | Francis | Elemore, Cowcowing | F8L | 1924 |
| Lodge | Frank | East Yangedine, Beverley | F3L | 1912 |
| Lodge | Frank | East Yangedine, Beverley | F3L | 1924 |
