Chatham Lighthouse is a lighthouse in Chatham, Massachusetts, near the "elbow" of Cape Cod. In 1808 the first set of twin lights were constructed on the bluff named James' Head to act as a set of range lights for the shifting shoals of the Chatham Harbor entrance. Samuel Nye was appointed as the first Keeper of the Chatham Lights by then-President Thomas Jefferson on October 7, 1808. The "twins" were replaced twice, first in 1841, and again in 1879.
