| Johnston | J. F. | Farmer & Grazier | Bunbury, Etc. | 1889 | WA Almanack |
| Johnston | J. F. | Miller | Bunbury | 1897 | Witton's Directory |
| Johnston | J. Forster | Farmer & Grazier | Bunbury | 1877 | WA Almanack |
| Johnston | J. Forster. | Farmer & Grazier | Wellington District (Bunbury, Etc.) | 1881 | WA Almanack |
| Johnston | J. Foster | Farmer & Grazier | Bunbury | 1877 | Herald Almanack |
| Johnston | J. Foster | Farmer & Grazier | Bunbury | 1878 | Herald Almanack |
| Johnston | J. R. | Auctioneer & Horse Bazaar | Hunt Street, Coolgardie | 1897 | Witton's Directory |
| Johnston | J. S. | Wheelwright | York | 1869 | WA Almanack |
| Johnston | J. S. | Wheelwright | York | 1870 | WA Almanack |
| Johnston | J. S. | Wheelwright | York | 1872 | WA Almanack |
| Johnston | J. S. | Wheelwright | York | 1873 | WA Almanack |
| Johnston | J. S. | Wheelwright | York | 1874 | Herald Almanack |
| Johnston | J. S. | Wheelwright | York | 1874 | WA Almanack |
| Johnston | J. S. | Wheelwright | York | 1875 | Herald Almanack |
| Johnston | J. S. | Wheelwright | York | 1875 | WA Almanack |
| Johnston | J. S. | Wheelwright & Undertaker | York | 1876 | Herald Almanack |
| Johnston | J. S. | Wheelwright & Undertaker | York | 1877 | Herald Almanack |
| Johnston | J. S. | Wheelwright and Undertaker | York | 1877 | WA Almanack |
| Johnston | J. S. | Wheelwright & Undertaker | York | 1878 | Herald Almanack |
| Johnston | J. S. | Wheelwright??and Undertaker | York | 1879 | Herald Almanack |
| Johnston | J. S. | Wheelwright and Undertaker | York | 1879 | WA Almanack |
| Johnston | J. S. | Wheelwright & Undertaker | York | 1880 | Herald Almanack |
| Johnston | J. S. | Wheelwright & Undertaker | York | 1881 | WA Almanack |
| Johnston | J. S. | Wheelwright & Undertaker | York | 1882 | Herald Almanack |
| Johnston | J. S. | Wheelwright and Undertaker | York | 1882 | WA Almanack |
| Johnston | J. S. | Wheelwright and Undertaker | York | 1884 | WA Almanack |
| Johnston | J. S. | Wheelwright | York | 1885 | Herald Almanack |
| Johnston | J. S. | Wheelwright & Undertaker | York | 1887 | WA Almanack |
| Johnston | J. S. | Whlwright & Undertkr. | York | 1888 | WA Almanack |
| Johnston | J. S., M. D. | Srgnt.-Mjr. | Perth | 1878 | Herald Almanack |
| Johnston | J. T. | D.A.C. General | Perth | 1870 | WA Almanack |
| Johnston | J. W. | Schoolmaster | Victoria District (Dongara & Irwin) | 1881 | WA Almanack |
| Johnston | J. W. | Schoolmaster | Victoria Districts (Dongara & Irwin) | 1882 | WA Almanack |
| Johnston | J.E.M | Farmer & Grazier | Bunbury | 1884 | Herald Almanack |
| Johnston | J.S. | Wheelwright | York | 1873 | Herald Almanack |
| Johnston | J.S. | Surgeon -Major M.D. Prin. Medical Officer. | Perth | 1876 | WA Almanack |
| Johnston | J.S. | Wheelwright | York | 1876 | WA Almanack |
| Johnston | J.S. | Wheelwright and Undertaker | York | 1880 | WA Almanack |
| Johnston | J.S. | Wheelwright & UnderTaker | York | 1881 | Herald Almanack |
| Johnston | J.S. | Wheelwright and Undertaker | York | 1889 | WA Almanack |
| Johnston | J.W. | Schoolmaster | Victoria District (Irwin & Dongara) | 1876 | WA Almanack |
| Johnston | James | Royal Exchange Hotel | Kanowna | 1897 | Witton's Directory |
| Johnston | Jas. | Farmer | Irwin & Dongara | 1877 | Herald Almanack |
| Johnston | Jas. | Farmer | Irwin & Dongara | 1877 | WA Almanack |
| Johnston | Jas. | Farmer | Irwin & Dongara | 1885 | Herald Almanack |
| Johnston | Jno. | Govt. Schoolmaster | Irwin & Dongara | 1885 | Herald Almanack |
| Johnston | Jos. | Restaurant | 37 Howick Street, Perth | 1897 | Witton's Directory |
| Johnston | Mrs. | - | Bunbury (Morelands) | 1877 | Herald Almanack |
| Johnston | Mrs. | Morelands | Bunbury (Morelands) | 1877 | WA Almanack |
| Johnston | Mrs. | - | Bunbury (Moorlands) | 1878 | Herald Almanack |
