Lord Philip Dormer Stanhope Chesterfield, Philip Dormer Stanhope Earl of Chesterfield (1855). “The Works of Lord Chesterfield: Including His Letters to His Son, Etc : to which is Prefixed, an Original Life of the Author”, p.621
William Cowper, Robert Southey, William Harvey (1835). “The Works of William Cowper: Comprising His Poems, Correspondence, and Translations. With a Life of the Author”, p.142