Each member of the board shall be a citizen of the United States and a resident of this state for two years before beginning a term of office. Source: SDC 1939, § 27.0901; SL 1947, ch 123 , § 2; SL 1955, ch 91 , § 3; SDC Supp 1960, § 27.0903 (2); SL 1967, ch 101 , § 3 (2); SL 1976, ch 228 , § 7; SL 2016, ch 194 , § 5.