KER, Henry, traveller, born in Boston, Massachusetts, about 1785. At an early age he removed with his father to London, and was educated at Westminster school for a mercantile life. Being fond of adventure, he left England on 25 April, 1808, and after travelling through North and South Carolina, Tennessee, and Mississippi, he went to Jamaica, W. I., but returned to New Orleans, and sailed up Red river, where he found a tribe of Indians, the Mnacedeus, from whose language and customs he inferred that they were descended from Madoc, a Welsh prince. Ker remained among these Indians for some time and discovered a platina-mine, for which he was condemned to death, but was rescued by the daughter of a chief. He subsequently travelled through Mexico, Florida, and the Gulf states, returning to England by way of New York. He published "Travels through the United States and Mexico in 1808-'16" (Elizabethtown, New Jersey, 1816).