Benjamin Franklin, William-Temple Franklin (1818). “Memoirs of the Life and Writings of (the Same), Continued to the Time of His Death by William Temple Franklin. - London, H. Colburn 1818”, p.270
Daily Telegram number 2678 on March 06, 1935. "Will Rogers' Daily Telegrams: The Roosevelt years, 1933-1935". Book edited by Steven Gragert and James Smallwood, 2008.