Complex sentence: He was the Providence justice of the peace, 1665/6,1667,1668 and officiated marriages from his office as an assistant for the Providence to the Rhode Island General Assembly from 1669-1671/72.
Split into simpler sentences: He was the Providence justice of the peace, 1665/6,1667,1668. William officiated marriages from his office as an assistant for the Providence to the Rhode Island General Assembly from 1669-1671/72.