William Cowper, John MACDIARMID (Editor of the “Dumfries and Galloway Courier.”.) (1819). “Poems ... To which is prefixed, a memoir of the author; also, critical remarks on his poems, written expressly for this work. By John M'Diarmid. Second edition, revised and extended”, p.71
William Cowper, James Thomson (1832). “The Works of Cowper and Thompson: Including Many Letters and Poems Never Before Published in this Country. With a New and Interesting Memoir of the Life of Thomson”, p.145