Jane Faragher appears to have been christened Jane Collister 11Mar 1832 and is the sister of Robert. Three neices living with Jane are the children of James Fargher and Catherine Qualtrough. It follows that jane adopted the Fargher (Faragher) name with one of the brothers possibly through cohabiting or when Anne was born.
An 1861 look up will show Ann and Jane and hopefully another.
Elizabeth in Australia will recognise the Qualtrough connection.