Major Francis L. Dade, for whom the County and battlefield are named, was an early causality of the the battle that led to the 2nd of 3 Seminole wars. It appears that after the War of 1812, General Andrew Jackson was ordered to remove the Seminole Indians from Florida to Oklahoma. Evidently, he was quite brutal in his efforts. When he became President, he continued this endeavor.
We visited the Dade Battlefield in Bushnell, Florida, where Major Dade was leading a US military force of 107 men from Fort Brooke (now Tampa Florida) to reinforce Fort King (now Ocala Florida) when he was attacked by 180 Seminole warriors. Only 3 of the soldiers survived, while the Indians only suffered minor casualties. The Seminole’s considered it a major victory.