Complex sentence: This group included the strongest supporters of Hutchinson and Wheelwright; the most serious action was taken against them, and all of them left, or intended to leave, the Massachusetts Bay Colony, though several of them recanted and returned.
Split into simpler sentences: This group included the strongest supporters of Hutchinson and Wheelwright. The most serious action was taken against them; all of them left the Massachusetts Bay Colony, though several of them recanted and returned.