Complex sentence: He and his new wife had been living at his parents'home, and continued to do so for two more years while saving money for their own house; by the mid- 1960s, however, they'd had children and were divorced.
Split into simpler sentences: He and his new wife had been living at his parents' home and continued to do so for two more years while saving money for their own house. By the mid- 1960s, however, they had children and were divorced.