sentences:  We can presume that he was also conversant with Muscogee, the tongue of the Upper Creek Indians from whom the great Seminole war chief, Osceola hailed because, in his adult years, he would be one of Osceola's main translators when dealing with the Americans (though Osceola, himself, spoke some English).The First Seminole War (1817–1818) occurred during Horse's childhood and the youngster, along with his sister and mother, was probably among those displaced blacks who fled south of the Suwannee River toward Tampa Bay.There young John grew into adolescence and came into contact with American soldiers who had established an outpost, Fort Brooke, in the region with the formal annexation of Florida after the success of Jackson's incursions.