Sentence 1: Vaughn had a son by a previous relationship , Barbara ( 1934-2002 ) , whom C. L. adopted shortly after the marriage .
Sentence 2: Barbara Vaughn had been adopted by a previous relationship , Barbara ( 1934-2002 ) , a son whom C. L. adopted shortly after the marriage .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?