1To Benjamin Franklin from Louis-Casimir, Baron de Holtzendorff, [30 December 1778] (Franklin Papers)
Extract: University of Virginia Those are the chiefest facts concerng. Baron Holzendorff’s...
2To Benjamin Franklin from the Baron de Holtzendorff, 10 January 1779 (Franklin Papers)
ALS : American Philosophical Society Your intention being to Shew to them other Gentlemen, your...