This would mean born in 1618. At any rate, there is no evidence, of which I am aware, that ties this 17 year old lad to be our ancestor. Details of his migration are unknown to me. He lived there the rest of his life and many generations of descendants lived in that area. William Wells apparently married late in life, or at least the marriage which produced identifiable descendants was late in life.
Most authorities estimate the births of the other children in that time range.
William would have been 36-42 in 1644, indicating he married late in life. She died fairly soon after the marriage. I have seen some show her surname as Burton. I don't know where that name comes from. Between 1644-1650 in Southold, Long Island.