Complex sentence: He married Bertha Effingham Lawrence (1865-1972) on July 29,1913, and they had two sons (Edward C. Newton and Blake T. Newton Jr.) and a daughter (Bertha E. L. Newton Davison) who survived their parents.
Split into simpler sentences: He married Bertha Effingham Lawrence (1865-1972) on July 29,1913. They had two sons (Edward C. Newton and Blake T. Newton Jr.) and a daughter (Bertha E. L. Newton Davison) who survived their parents.