Complex sentence: She was married to and later divorced the literary critic Alfred Kazin, with whom she had a daughter, Cathrael Kazin, Managing Partner, Volta Learning Group; she was also stepmother to professor and author Michael Kazin.
Split into simpler sentences: She was married to and later divorced the literary critic Alfred Kazin, with whom she had a daughter, Cathrael Kazin. Birstein was also stepmother to professor and author Michael Kazin.