The confusion with her parentage comes from people who are treating George Phelps' first wife, a daughter of Phillip Randall, Philura Randall, and his second wife, Francis, the widow of Thomas Dewey, as the same person. This is usually seen in Family Trees that have unapproved sources according to WikiTree standards. They were two different people.
Frances was born in England about 1610.
Some say she was the daughter of Philip Randall (1574 – 1662) and Joane Flush (1578 – 1665). IF Philip Randall had such a daughter, she was not THIS one. See TAG 25:151.
Frances married first about 1630 ____ Clark (NOT Joseph Clark of Windsor) by whom she had:
Mary Clark b about 1630, married George Strong).
She married second Thomas Dewey 22 March 1638/39 in Windsor, Hartford, Connecticut by whom she had (this needs checking):