Robert Whitehead of Trowell, Nottinghamshire, progenitor of a family of blacksmiths, agricultural labourers and framework knitters, is shown as the son of Richard Whitehead, magistrate of Connecticut. According to the source shown on his wife's profile, Richard Whitehead was briefly married to Mary the widow of William Hopkins. Hopkins died in 1643, Whitehead in 1645, with no evidence of any children. A son born in Nottinghamshire, England, seems fanciful.
An unsourced tree on Family Search https://www.familysearch.org/tree/person/details/LLQ1-2J4 has the same parentage for Robert, but places Richard Whitehead and Mary Andrews in Thanet, Kent. It is plausible that Richard Whitehead emigrated from Kent to Connecticut, but I can find no evidence for any link to Robert Whitehead in Nottinghamshire.
(Robert Whitehead is my 9×great-grandfather.)