Complex sentence: Jones married the former Louise Gambrell Boyer (1902--1996), and they had two children, Robert Gambrell "Bob" Jones and Carolyn Jelks Jones and he adopted Mrs. Boyer's children from her previous marriage, James G. Boyer and William E. Boyer.
Split into simpler sentences: Jones married the former Louise Gambrell Boyer (1902--1996), and they had two children, Robert Gambrell "Bob" Jones and Carolyn Jelks Jones. He adopted Mrs. Boyer's children from her previous marriage, James G. Boyer and William E. Boyer.