Complex sentence: Then Governor Nelson A. Rockefeller named Alfange head of the New York State Racing and Wagering Board in the early 1970s, and served until Hugh L. Carey abolished the board in 1975.
Split into simpler sentences: Then Governor Nelson A. Rockefeller named Alfange head of the New York State Racing and Wagering Board in the early 1970s. He served until Hugh L. Carey abolished the board in 1975.