Complex sentence: In 1943, Saroyan married actress Carol Marcus (1924--2003; also known as Carol Grace), with whom he had two children, Aram, who became an author and published a book about his father, and Lucy, who became an actress.
Split into simpler sentences: In 1943, Saroyan married actress Carol Marcus (1924--2003; also known as Carol Grace), with whom he had two children, Aram and Lucy. Aram went on to become an author, and published a book about his father, and Lucy was an actress.