Boston Light lighthouse Keeper Sally Snowman presents her book to Adm. Paul Zukunft, the commandant of the U.S. Coast Guard on Little Brewster Island, Mass., September 14, 2016. Boston Light was built on Little Brewster Island in 1716 and stood as the first lighthouse in what is now the United States. U.S. Coast Guard photo by Petty Officer 2nd class LaNola Stone.