Final answer:
The Pilgrims who settled in Plymouth were members of a Puritan Separatist congregation, distinct from other Puritans who aimed to reform the Church of England.
Step-by-step explanation:
The majority of colonists who first settled in Plymouth were members of a Puritan Separatist congregation. These colonists, known as the Pilgrims, insisted on a complete separation from the Church of England, which led them to initially move to the Dutch Republic in Europe. However, looking to maintain their English identity and seeking religious freedom, they eventually founded Plymouth Colony in present-day Massachusetts. Unlike the Pilgrims at Plymouth who were Separatists, the Puritans of Massachusetts Bay sought to reform the Church of England from within rather than separate from it entirely.