An update on this thread , I have now found ( I think ) three of Isabella’s children .
Alexander was living in Australia under the variant Alastair .
I have sadly found a death certificate in 1862 for Donald.
I’ve also found a death entry for Donald’s twin , Duncan , in Peel , Ontario .
Still no sign of Isabella and her son William . Maybe if I find one it will lead me to the other . I think a trip to Inverness to check out the asylum records may be my best bet .