| Cook | T. W | Farmer | Newcastle & Toodyay District | 1881 | WA Almanack |
| Cook | T. W. | Farmer | Toodyay | 1879 | WA Almanack |
| Cook | T. W. | Farmer | Newcastle & Toodyay District | 1882 | WA Almanack |
| Cook | T. W. | Farmer | Newcastle & Toodyay District | 1884 | WA Almanack |
| Cook | T.A. | Blacksmith | Fremantle | 1876 | WA Almanack |
| Cook | T.G | Publican | Swan (Toodyay Road) | 1883 | Herald Almanack |
| Cook | Thomas | Farmer | Newcastle & Toodyay District | 1882 | WA Almanack |
| Cook | Thomas | Farmer | Newcastle & Toodyay District | 1884 | WA Almanack |
| Cook | Thomas | Farmer | Newcastle | 1887 | WA Almanack |
| Cook | Thomas | Carpenter | Fremantle | 1888 | WA Almanack |
| Cook | Thomas | Mason | Fremantle | 1888 | WA Almanack |
| Cook | Thomas | Farmer | Newcastle | 1888 | WA Almanack |
| Cook | Thomas | Carpenter | Fremantle | 1889 | WA Almanack |
| Cook | Thomas | Mason | Fremantle | 1889 | WA Almanack |
| Cook | Thomas | Farmer | Newcastle | 1889 | WA Almanack |
| Cook | Thomas | | King William Street, Beaconsfield | 1897 | Witton's Directory |
| Cook | Thomas A. | Blacksmith | Fremantle | 1863 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1864 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1865 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1866 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1867 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1868 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1869 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1870 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1872 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1873 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1874 | Herald Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1875 | Herald Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1875 | WA Almanack |
| Cook | Thomas A. | Blacksmith | Fremantle | 1876 | Herald Almanack |
| Cook | Thos. | Farmer | Newcastle & Toodyay District | 1880 | WA Almanack |
| Cook | Thos. | Farmer | Newcastle & Toodyay District | 1881 | WA Almanack |
| Cook | Thos. | Carpenter | Fremantle | 1886 | WA Almanack |
| Cook | Thos. | Mason | Fremantle | 1887 | WA Almanack |
| Cook | Thos. | Carpenter | Fremantle | 1887 | WA Almanack |
| Cook | Thos. | Blacksmith | Gingin | 1887 | WA Almanack |
| Cook | Thos. | Blacksmith | Gingin | 1888 | WA Almanack |
| Cook | Thos. | Blacksmith | Gingin | 1889 | WA Almanack |
| Cook | Thos. A. | Blacksmith | Fremantle | 1874 | WA Almanack |
| Cook | Thos. A. | Blacksmith | Fremantle | 1877 | Herald Almanack |
| Cook | Thos. Jun. | Farmer | Toodyay | 1874 | Herald Almanack |
| Cook | W. | Mason | Fremantle | 1887 | WA Almanack |
| Cook | W. | Mason | Fremantle | 1888 | WA Almanack |
| Cook | W. | Mason | Fremantle | 1889 | WA Almanack |
| Cook | W. P. C. | | Mason Street, North Fremantle | 1897 | Witton's Directory |
| Cook | W. S. | | Northam | 1897 | Witton's Directory |
| Cook | Wm. | Farmer & Grazier | Victoria Plains & Dandaragan | 1879 | Herald Almanack |
| Cook | Wm. | Farmer & Grazier | Victoria Plains & Dandaragan | 1880 | Herald Almanack |
| Cook | Wm. | Farmer & Grazier | Victoria Plains & Dandaragan | 1882 | Herald Almanack |
| Cook & Morrell | - | Pearlers & Graziers | Mill Stream | 1883 | Herald Almanack |