Complex sentence: Cobb directed the tissue culture laboratory at the University of Illinois from 1952 to 1954, and worked as a faculty member at NYU from 1956 to 1960, and at Sarah Lawrence College from 1960 to 1969.
Split into simpler sentences: Cobb directed the tissue culture laboratory at the University of Illinois from 1952 to 1954. She worked as a faculty member at NYU from 1956 to 1960, and at Sarah Lawrence College from 1960 to 1969.