| Blackburne | J. | Hospital Orderly | Victoria District (Geraldton) | 1881 | WA Almanack |
| Blacker | W. | Refreshment Rooms | Broome Road, Perth | 1897 | Witton's Directory |
| Blackett | - | | Roy Street, Perth | 1897 | Witton's Directory |
| Blackhall | R. | Accountant | Cossack | 1873 | Herald Almanack |
| Blackhall | R. | Accountant | North District, Cossack | 1874 | Herald Almanack |
| Blackiston | G. J | Clerk, Roads Board | York | 1887 | WA Almanack |
| Blackiston | G. J. | Government School Master | York | 1873 | WA Almanack |
| Blackiston | G. J. | Government Schoolmaster | York | 1880 | WA Almanack |
| Blackiston | G. J. | Government Schoolmaster | York | 1881 | WA Almanack |
| Blackiston | G. J. | Government Sclmstr. | York | 1882 | WA Almanack |
| Blackiston | G. J. | Clerk | York | 1886 | WA Almanack |
| Blackiston | L. | Packer | Beverley | 1897 | Witton's Directory |
| Blackiston | L. | Platelayer | Gilgering | 1897 | Witton's Directory |
| Blackiston | Miss | Dressmaker | York | 1882 | WA Almanack |
| Blackiston | Miss. | Dressmaker | York | 1880 | WA Almanack |
| Blackiston | Miss. | Dressmaker | York | 1881 | WA Almanack |
| Blackman | H. S. | | Barker Road, Perth | 1897 | Witton's Directory |
| Blackmore | S. | Farmer & Sheepowner | Kojonup | 1882 | Herald Almanack |
| Blackmore | S. | Farmer & Sheepowner | Kojonup | 1883 | Herald Almanack |
| Blackmore | S. | Farmer & Sheepowner | Kojonup | 1884 | Herald Almanack |
| Blackmore | S. | Farmer & Sheepowner | Kojonup | 1885 | Herald Almanack |
| Blackney | T | Importer Fancy Goods | Perth | 1884 | Herald Almanack |
| Blackney | T. | Storekeeper | Perth | 1884 | WA Almanack |
| Blackney | T. | Importer Fancy Goods | Perth | 1885 | Herald Almanack |
| Blackney | T. | Importer &c. | Perth | 1886 | WA Almanack |
| Blackney | T. | Importer &c. | Perth | 1887 | WA Almanack |
| Blackney | T. | Importer | Perth | 1888 | WA Almanack |
| Blackney | T. | Importer | Perth | 1889 | WA Almanack |
| Blackney | T. | | Lamb Street, Perth | 1897 | Witton's Directory |
| Blackwell | H. LeT. | Tobacconist | Toorak (suburb), Coolgardie | 1897 | Witton's Directory |
| Blackwell & Co | | Tobacconists | Bayley Street, Coolgardie | 1897 | Witton's Directory |
| Blackwell & Co | | Tobacconists | Hunt Street, Coolgardie | 1897 | Witton's Directory |
| Blain | C. R. | | "Hinton" Hay Street, Perth | 1897 | Witton's Directory |
| Blain | C. R. | General Merchant & Importer, Holms & Blain | Hinton, Hay Street, Perth | 1897 | Witton's Directory |
| Blain | F. P. C. | | Cue | 1897 | Witton's Directory |
| Blair | Mrs. | | Skinner Street, Fremantle | 1897 | Witton's Directory |
| Blair | P. | Carpenter | Pinjarrah | 1877 | Herald Almanack |
| Blair | P. | Carpenter | Murrary District - Pinjarrah | 1878 | Herald Almanack |
| Blair | P. | Carpenter | Pinjarrah | 1879 | Herald Almanack |
| Blair | P. | Carpenter | Pinjarrah | 1880 | Herald Almanack |
| Blair | P. | Carpenter | Pinjarrah | 1881 | Herald Almanack |
| Blair | P. | Carpenter | Murray (Pinjarrah) | 1881 | WA Almanack |
| Blair | P. | Carpenter | Pinjarrah | 1882 | Herald Almanack |
| Blair | P. | Carpenter | Pinjarrah | 1883 | Herald Almanack |
| Blair | P. | Carpenter | Pinjarrah | 1884 | Herald Almanack |
| Blake | A. | Lodging-House Keeper | Victoria District (Irwin & Dongara) | 1876 | WA Almanack |
| Blake | A. | Lodging-House Keeper | Irwin & Dongara | 1877 | Herald Almanack |
| Blake | A. | Lodging-House Keeper | Irwin & Dongara | 1877 | WA Almanack |
| Blake | A. | Lodging-House Keeper | Irwin & Dongara | 1878 | Herald Almanack |
| Blake | A. | Lodging House Keeper | Irwin & Dongara | 1879 | Herald Almanack |