 Yeo captured Oswego and then blockaded Sackets Harbor on 6 May 1814; he was reinforced by two frigates built on Point Frederick.Before the war ended Yeo had commissioned the 112-gun "St. Lawrence", a three-decker man-of-war, and two more were being built.A stone building, built around 1813, was used as a naval hospital and is now known as the ordnance storekeeper's quarters.