Dear Karen
I have a similar story to yours. My great grandfather John Junior ends up in London in 1891 with his wife. Martha is also there.Martha baptism is also a mystery as her brothers and sisters are baptised in the Hen Street Baptist Church in Bovey Tracey, but the records on line seem to end in 1837 before Martha was born in 1838. But the church seems to be still in use after this. Her mother Mary seems to be quite involved with this church. I have been wondering how complete these records are. This may be the reason Martha gets baptised again.