DeCaffee was founded in 1842 by Philip Causmoor. He named the community "Causmoor", after his father John, who was a war hero. Causmoor's community had no bank or post office, so its residents traveled to LeDoux to use the bank and post office there. In 1857, the townspeople voted to rename their town. In 1858, George Bedelheim renamed the town "DeCaffee", after soldier Curtis Matthew DeCaffee, who fought with General Fatjohn Dollouve in the Battle of Authonome.