Hog Islanders is the slang for ships built to Emergency Fleet Corporation designs number 1022 and 1024. These vessels were cargo and troop transport ships, respectively, built under government direction and subsidy to address a shortage of ships in the United States Merchant Marine during World War I. American International Shipbuilding, subsidized by the United States Shipping Board, built an emergency shipyard on Hog Island at the site of the present-day Philadelphia International Airport.