Complex sentence: In 1814, he was appointed by President James Madison to be Indian agent to the Chickasaw nation; he died in Columbus, Lowndes County, Mississippi, in 1828 and is buried there, in Friendship Cemetery.
Split into simpler sentences: In 1814, he was appointed by President James Madison to be an Indian agent to the Chickasaw nation. Cocke died in Columbus, Lowndes County, Mississippi, in 1828 and is buried there, in Friendship Cemetery.