The Cornwall and Isles of Scilly Team have created a free space page where you can list your ancestors (or profiles under your care) who emigrated to another country.
https://www.wikitree.com/wiki/Space:England_Cornwall_County_Team
If you are not comfortable making entries please put the Wiki ID in the public comment space - a team member will complete.
The table is sortable on Surname or Country
We also have a Cornwall Notables page
https://www.wikitree.com/wiki/Space:Cornwall_Notables
Kind Regards
Roger Davey
Cornwall Team Captain
PS - just noticed we have no profiles on the Australian table for Queensland, Tasmania, Western Australia
Great idea, Roger. I've added my ancestor, but seem to have messed up the table.
This pensioner needs to read his emails correctly
He is now on notables as well
Cheers Roger
Great idea Roger!
If you don't mind, I'll set up similar pages for Dorset and Wiltshire using much of your text.