Complex sentence: She married Charles Dimont, a journalist, in 1937, and they had two daughters, including the actress Caroline Mortimer, and two daughters through extra-marital relationships with Kenneth Harrison and Randall Swingler.
Split into simpler sentences: She married Charles Dimont, a journalist, in 1937; and they had two daughters, including the actress Caroline Mortimer. She had two daughters through extra-marital relationships with Kenneth Harrison and Randall Swingler.