Fort Jefferson on Garden Key is located 70 miles west of Key West in the Dry Tortugas. Construction of the fort began in 1846 and was planned on a grand scheme. However, the invention of the rifled cannon made the fort’s construction obsolete and it was never completed.
Dr. Samuel Mudd, the doctor who treated John Wilkes Booth’s broken leg the morning after the assassination of Abraham Lincoln, was found guilty of aiding and abetting Booth’s escape and sentenced to life at Fort Jefferson. Four years later, he was pardoned and released.