The oldest surviving structure, the Jupiter Lighthouse, was built in 1860, after receiving authorization to the land from President Franklin Pierce in 1854. During the American Civil War, Florida was a member of the Confederate States of America. Two Confederate adherents removed the lighting mechanism from the lighthouse. One of the men who removed the light, Augustus O. Lang, was also the first White settler in Palm Beach County. He built a palmetto shack along the eastern shore of Lake Worth in 1863 after abandoning the cause of the Confederacy. After the Civil War ended, the Jupiter Lighthouse was relit in 1866. Thirteen years later, a National Weather Service office was established at the lighthouse complex. However, the office was moved to Miami in 1911 after that city's population began to rapidly grow.