John Jumper or Heneha Mekko, was Principal Chief of the Seminole Nation from 1849 to 1865, and again from 1882 to 1885. He was also a Baptist pastor. Jumper led those Seminole who supported the Confederacy, signing a treaty with the new government in the hope of gaining an Indian state if they were successful. He served as a lieutenant colonel in the Confederate Army Seminole Mounted Volunteers.