Complex sentence: He left Germany for the United States in 1925, staying in New Jersey and New York City, before moving to Chicago, where he was employed as a Works Progress Administration muralist from 1930 to 1939.
Split into simpler sentences: He left Germany for the United States in 1925, staying in New Jersey and New York City. In 1930 he moved to Chicago, where he was employed as a Works Progress Administration muralist from 1930 to 1939.