Sentence 1: Burroughs was a native of Mathews County , Virginia , and spent most of his career at the Gosport Yard ( known as Norfolk Naval Shipyard after 1862 ) .
Sentence 2: Burroughs was a native of Mathews County , Virginia , and spent most of his career on the Gosport Yard ( known as Norfolk Naval Shipyard after 1862 ) .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?