Complex sentence: Smith was one of the founders of Hull House Music School, first settlement music school in U.S.; music instructor Cook Co. Normal School; head Dep't of Music, School of Education, Univ. of Chicago, 1901-10.
Split into simpler sentences: Smith was one of the founders of Hull House Music School, the first settlement music school in the US. She was a music instructor at Cook Co. Normal School; and the head of the Department of Music, School of Education, University of Chicago, 1901-10.