according to that link ... Thomas Banfield Married Ann??, They had Nicholas Barrett Banfield, 1835 (father of Mary Catherine, 1863).
Supposedly Ann?? was b c 1808/9 gorranfound this on IGI extracted:
Ann Barret
19 june 1808, Gorran
Parents; Nicholas Barret and Susanna.
Seems to fit with Thomas and Ann's children's names

deb