""An Oration On The Life, Character And Services Of John Caldwell Calhoun"" is a book written by James Henry Hammond in 1850. The book is a tribute to John Caldwell Calhoun, a prominent American statesman who served as the seventh Vice President of the United States. The author, James Henry Hammond, was a politician and lawyer who served as the Governor of South Carolina from 1842 to 1844.The book provides a comprehensive description of John Caldwell...