| Clarkson | B. L. | Farmer | Newcastle | 1897 | Witton's Directory |
| Clarkson | B.D | J.P Stockowner | Toodyay | 1883 | Herald Almanack |
| Clarkson | B.D. | J.P. Stockowner | Toodyay | 1881 | Herald Almanack |
| Clarkson | D. B. | Farmer and Stockhldr. | Victoria District (Mines Etc) | 1869 | WA Almanack |
| Clarkson | E | Blacksmith | Victoria District (Irwin & Dongara) | 1876 | WA Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1873 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1874 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1875 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1875 | WA Almanack |
| Clarkson | E. | Blacksmith | Irwin & Donarra | 1876 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1877 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1877 | WA Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1878 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1879 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin | 1879 | WA Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1880 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1881 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1882 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1883 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1884 | Herald Almanack |
| Clarkson | E. | Blacksmith | Irwin & Dongara | 1885 | Herald Almanack |
| Clarkson | E. W. | Farmer | Victoria District (Dongara & Irwin) | 1881 | WA Almanack |
| Clarkson | E. W. | Farmer | Victoria Districts (Dongara & Irwin) | 1882 | WA Almanack |
| Clarkson | E. W. | Stockowner | Victoria District (Dongara) | 1884 | WA Almanack |
| Clarkson | E. W. | Stockowner | Victoria District (Dongara) | 1886 | WA Almanack |
| Clarkson | E. W. | Stockowner | Dongara | 1887 | WA Almanack |
| Clarkson | E. W. | Stockowner | Dongara | 1888 | WA Almanack |
| Clarkson | E. W. | Stockowner | Dongara | 1889 | WA Almanack |
| Clarkson | E. W. | Farmer | Dongara | 1897 | Witton's Directory |
| Clarkson | H. | Dealer | Murray | 1869 | WA Almanack |
| Clarkson | H. | Dealer | Murray | 1870 | WA Almanack |
| Clarkson | H. | Dealer | Murray | 1873 | Herald Almanack |
| Clarkson | H. | Dealer | Murray | 1874 | Herald Almanack |
| Clarkson | Harry | Farmer | Newcastle | 1897 | Witton's Directory |
| Clarkson | J. | Pearler | Fortesque River | 1873 | Herald Almanack |
| Clarkson | J. | Sheepfarmer | Toodyay | 1874 | Herald Almanack |
| Clarkson | J. | Pearler | Pearler without a Fixed Residence | 1874 | Herald Almanack |
| Clarkson | J. | Sheepfarmer | Toodyay | 1875 | Herald Almanack |
| Clarkson | J. | Sheepfarmer | Toodyay | 1875 | WA Almanack |
| Clarkson | J. | Sheepfarmer | Toodyay | 1876 | Herald Almanack |
| Clarkson | J. | Sheepfarmer | Toodyay | 1876 | WA Almanack |
| Clarkson | J. | Farmer | Toodyay | 1877 | Herald Almanack |
| Clarkson | J. | Non-Resident-Pearlers | North-West Coast | 1877 | Herald Almanack |
| Clarkson | J. | Sheepfarmer | Toodyay | 1877 | WA Almanack |
| Clarkson | J. | Pearler | North-West Coast - Non-Resident Pearlers | 1878 | Herald Almanack |
| Clarkson | J. | Pearler | Cossack | 1879 | Herald Almanack |
| Clarkson | J. | Pearler | North-West Coast (Roeburne & Cossack) | 1879 | WA Almanack |
| Clarkson | J. | Pearler | Canning | 1880 | Herald Almanack |
| Clarkson | J. | Sheepowner | Newcastle & Toodyay District | 1880 | WA Almanack |
| Clarkson | J. | Pearler | North-West Coast | 1880 | WA Almanack |
