Our very extensive family here in NZ is descended from Frances Leitch who emigrated at aged 17 on the "Jane Gifford" in 1852, - 'One of Bishop Selwyn's chosen settlers'. She was baptised at St. Peters in Liverpool on 5.1.1836, her parents were Duncan & Mary Ann Leitch nee Heany, - her mother was a widow when she married Duncan on 25th September 1829 at St. Peters.
I have been unable to find their parents. Duncan was recorded as being a mariner at their marriage & a shipwright on his daughter's baptism cert..
I'm wondering if he is related to your Ann, if he had any more children, when he lived,died etc..
Perhaps he/they are on census records?
Hoping someone is able to help, please.