| Blowfield | Harold J. | Third Street, Harvey | U8J | 1924 |
| Blowfield | J. L. | Well. Loc. Pt. 1, 22, & 48, Rosamel, Bunbury | 8BD | 1962 |
| Bloxham | F. B. | Brown's Lagoon, Ora Banda | 5BX | 1924 |
| Bloxsidge | E. | Alandale, S. Stirling, via Mt Barker | EB5 and 28C, 27E | 1962 |
| Bloxsidge | H. R. & M. B. | Nelson 1910-11853, Yornup | QB8 and 1C, 7A | 1962 |
| Bloxsidge | Jas. S. | Homebush Farm, Koorda | UZ2 | 1924 |
| Bloxsome | Chas. Enos | "The Farm" Jarnadup | VY4 | 1924 |
| Bloxsome | Edwin | Homestead Farm, Bulading | B9O | 1924 |
| Bloxsome | J. R. | Milross, Balbarrup Road, Bridgetown | QB8 | 1924 |
| Bloxsome | Jeanetta B. | "The Farm" Jarnadup | 4YV | 1924 |
| Bloxsome & Lipple | - | Nelson 1123, 605, Yornup | B2L and 41B, 5E | 1962 |
| Bluett | F. W. | Adelaide Street, Fremantle | 1BO | 1912 |
| Bluett | F. W. | Adelaide Street, Fremantle | 1BO | 1924 |
| Blum & Sons | A. R. | Sussex Lox. 656-1, Abba River | LK7 and 1C, 52F | 1962 |
| Blumann | N. A. | Esp. Locs. 631-36, Gibson | Z0B and 59F, 46B | 1962 |
| Blundy | A. J. | Hazelwood, Kojonup | B4Y | 1912 |
| Blundy | A. J. | Hazelwood, Kojonup | B4Y | 1924 |
| Blundy | F. H. | Nyabing, Via Katanning | 6BF | 1924 |
| Blundy | L. J. | Callignee, Nyabing | 0WK | 1962 |
| Blundy | Leslie John | Calligull, Nyabing | 0UK | 1924 |
| Blunsdon | R. P. | Bridge-view, Rosa Brook | RB3 | 1962 |
| Bluntish | Mrs D. G. | Inverinary, Broomhill | 2KG | 1924 |
| Blurton | Friley | New Norcia | F0N | 1924 |
| Blurton | Geo. | Wingawarrana, Roebourne | B2Z | 1912 |
| Blurton | Geo. | Wingawarrana, Roebourne | B2Z | 1924 |
| Blurton | J. C. H. | Whitecombe Farm, Tammin | OB8 | 1924 |
| Blyth | J. A. | Blythesdale, Pingelly | BA2 | 1912 |
| Blyth | J. A. | Bythesdale, Pingelly | BA2 | 1924 |
| Blyth | L. D. & M. J. | Wynyards, Byford | 1BM and 59F, 41B | 1962 |
| Blyth | O. D. | Bairnsdale, East Pingelly | 0DB | 1912 |
| Blyth | O. D. | Bairnsdale, East Pingelly | 0DB | 1924 |
| Blythe | A. O. | Meelup Park, Busselton | NP0 | 1924 |
| Blythe | A. O. | Lot 58, Maddington | NP0 | 1962 |
| Blythe | C. C. | Oscar Range, Derby | 0RS | 1912 |
| Blythe | C. C. | Brooking Station, Fitzroy | BL7 | 1912 |
| Blythe | C. C. | Brooking, Cannington | 0BU | 1924 |
| Blythe | C. K. | Manyana, King River | C6B and 103, 8A | 1962 |
| Blythe | E. McG. | Block 385, Coorow | 8EB | 1912 |
| Blythe | E. McG. | Block 385, Coorow | 8EB | 1924 |
| Blythe | Frank W. | Blytheswood Lot 459, Denmark | BX5 | 1924 |
| Blythe | G. A. | Journeys End, Brooklyn Rd, Balingup | BY6 | 1962 |
| Blythe | H. B. | Ingleside, Pinjarra | 8BB and 49B, 49E | 1962 |
| Blythe | H. R. | Mundalup, Nannup | T1E and 117, 118E | 1962 |
| Blythe | J. W., M. F., A. | Mount House Station, West Kimberley | 2JK | 1912 |
| Blythe | Jas. B. | C. P. Lease 8900 / 55, Pingelly | B6B | 1912 |
| Blythe | Jas. B. | C.P. Lease 8900/55, Pingelly | B6B | 1924 |
| Blythe | M. A. | 2864/5, Yallingup | ZB6 | 1962 |
| Blythe | M. M. | The Park, Guilford | 4NT | 1924 |
| Blythe | Mary M. | Fitzroy, West Kimberley | EE2 | 1912 |
| Blythe | Mary M. | Fitzroy, West Kimberley | EE2 | 1924 |
