Sentence 1: His first wife was Alice Silverthorne of the USA , whom he met in Paris in May 1921 and married in Chicago in September of the same year .
Sentence 2: His first wife was Alice Silverthorne of the U.S. , whom he met in Paris in May 1921 and married in Chicago in September of that year .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?