1From Benjamin Franklin to Benjamin Vaughan, 22 August 1783 (Franklin Papers)
ALS : Yale University Library This Line will be presented to you by a very ingenious Gentleman,...
2From Benjamin Franklin to Graf von Brühl, 22 August 1783 (Franklin Papers)
ALS : Scottish Record Office M. de Kempel, the ingenious Author of the Automaton that plays...
3From Benjamin Franklin to John Whitehurst, 22 August 1783 (Franklin Papers)
ALS : Descendants of the Rawle and Corning Families, Connecticut (2010) The Bearer, Mr Kempel, is...
4From Benjamin Franklin to Joseph-Mathias Gérard de Rayneval, 22 August 1783 (Franklin Papers)
LS : Archives du Ministère des affaires étrangères Mr Carnes having informed me that my...