Complex sentence: Smith would serve as the head of the Minneapolis NAACP's Legal Redress Committee from 1926 to 1930 and the chapter's president from 1930 to 1939.
Split into simpler sentences: Smith would serve as the head of the Minneapolis NAACP's Legal Redress Committee from 1926 to 1930. Smith served as the chapter's president from 1930 to 1939.