Complex sentence: Elizabeth E. Farrell (1870--October 15,1932) was an American educator, first person to teach a class of special education students in an American public school, and first president of the Council for Exceptional Children.
Split into simpler sentences: Elizabeth E. Farrell (1870--October 15,1932) was an educational pioneer. She is known for being the first person to teach a class of special education students in an American public school, and for organizing the Council for Exceptional Children.