Complex sentence: Francis Asbury, Richard Whatcoat and the Earl of Dartmouth are among those who attended Methodist meetings in the town, and all of whom were in different ways to have a profound effect on the United States.
Split into simpler sentences: Francis Asbury, Richard Whatcoat and the Earl of Dartmouth are among those who attended Methodist meetings in the town. All of whom were in different ways to have a profound effect on the United States.