In relation to this closed thread...

https://www.british-genealogy.com/th...-SMITH-CONVICT

I came across this document while looking for something else and remembered the names. It proves that it is the same Caroline GANT in the SMITH and HARRIS relationships.

https://stors.tas.gov.au/SWD26-1-8$init=SWD26-1-8P522
https://stors.tas.gov.au/SWD26-1-8$init=SWD26-1-8P523

It looks like most of the HARRIS births were not registered, but I think it is likely that Mary Ann Margaret HARRIS and Catherine Ellen HARRIS were two of Caroline's children with William HARRIS.

Their marriages:

https://stors.tas.gov.au/RGD37-1-37p246j2k

https://stors.tas.gov.au/RGD37-1-37p249j2k