The land was poor for farming, but access to the region's waterways left room for commerce and trade, and Groton became a town of oceangoing settlers. Most of the community began to build ships, and soon traders made their way to Massachusetts Bay Colony and Plymouth Colony to trade for food, tools, weapons, and clothing. John Leeds was the earliest shipbuilder, coming as a sea captain from Kent, England. He built a 20-ton brigantine, a two-masted sailing ship with square-rigged sails on the foremast and fore-and-aft sails on the mainmast. Thomas Starr built a 67-ton square-sterned vessel, and Thomas Latham launched a 100-ton brig on the Groton bank with mast standing and fully rigged. The sturdy ships built in Groton engaged in very profitable trade with the islands of the Caribbean.