Letter to Catherine, Lady Hamilton, April 1781; cited from "The Life and Letters of William Beckford of Fonthill" by Lewis Melville, London: William Heinemann, (p. 92), 1910.
H.P. Lovecraft, Digital Papyrus (2014). “H.P. Lovecraft: The Ultimate Collection (160 Works Including Early Writings, Fiction, Collaborations, Poetry, Essays & Bonus Audiobook Links)”, p.1753, eBookIt.com
Daniel Webster, James Rees (1839). “The beauties of the Hon. Daniel Webster: selected and arranged, with a critical essay on his genius and writings”, p.82