Australia
Only two small Tasmanian trees have been constructed, although there clearly was a presence in north west
Australia with a geographical feature named Causton.
| Researcher | Top of Tree | ID Numbers in Tree | Notes | ||
| William Cawston | 19C | 1127 | 1127, 1130, 5243-5252 | Tasmania | |
| William Herbert Godwin | 19C | 5253 | 5253-5259 | Tasmania | |