Badger's Island is located in the Piscataqua River at Kittery, Maine, directly opposite Portsmouth, New Hampshire. It carries U.S. Route 1 between the states, connecting to the Kittery mainland by the Badger's Island Bridge, and to New Hampshire by the Memorial Bridge. Now largely a suburb of Portsmouth, the island features houses, condominiums, restaurants and marinas.
Prior to the Civil War, Badger's Island was famous for shipbuilding. Eastern white pine for masts, together with lumber for hulls, arrived down the Piscataqua River from inland forests. Only two tenths of a mile (322 m) from Portsmouth's busy wharves, the island's gradual slope into the deep channel between was ideal for launching vessels. First called Rising Castle Island, it changed to Langdon's Island when John Langdon established his shipyard. The first U. S. Navy ships commissioned by the Continental Congress were built here by master shipbuilder James Hackett, including USS Ranger in 1777. One of his apprentices working on Ranger was William Badger. Acquiring 3 acres (12,000 m2) on the island in 1797, he would dominate its shipbuilding until his death in 1830, launching more than 100 ships, including naval vessels, merchant vessels and privateers. The region produced many fine shipbuilders, including his nephew Samuel Badger, but William Badger, called Master Badger, is best known. He is buried on the island that bears his name.