Complex sentence: He served in the U.S. House of Representatives, filling the seat vacated by Richard W. Habersham who died in office and was elected the state's 38th Governor--serving two terms from 1843--47.
Split into simpler sentences: He served in the U.S. House of Representatives, filling the seat vacated by Richard W. Habersham who died in office. Crawford was elected the state's 38th Governor, serving two terms from 1843--47.