Complex sentence: He chose not to run again in 1842; member of the State constitutional convention in 1844; and Governor of New Jersey from January 21,1845, to January 17,1848.
Split into simpler sentences: He chose not to run again in 1842; member of the State constitutional convention in 1844. Stratton won, and served as Governor of New Jersey from January 21,1845, to January 17,1848.