Charlotte Bolton was still alive in 1805 and listed as being on stores.
There is a Charlotte Herbert who married John Fisher on 16 April 1828 at Sandy Bay in Van Diemen's Land (Tasmania). Edward Fisher and F. Barnes were witnesses. She died on 22 May 1897 in Hobart. Her age was given as 84.
'Herbert, Charlotte (1792–?)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/herbert-charlotte-27730/text35412, accessed 30 March 2023.
1792
Norfolk Island, Australia