John Milton, Henry John Todd (1852). “The Poetical Works of John Milton: With Notes of Various Authors; and with Some Account of the Life and Writings of Milton, Derived Principally from Original Documents in Her Majesty's State-paper Office”, p.275
Frances Wright (1821). “Views of society and manners in America: in a series of letters from that country to a friend in England, during the years 1818, 1819, and 1820”, p.83