Comparative vocabulary of 22 Native American languages, based on Jefferson's collection of vocabularies on printed forms. This document was damaged in transit from the White House to Monticello in 1809 (see letters of Jefferson to Peter S. Du Ponceau, November 7, 1817, and April 26, 1816.)
Vocabulary of the Caddo language in French orthography. This document was damaged in transit from the White House to Monticello in 1809 (see letters of Jefferson to Peter S. Du Ponceau, November 7, 1817, and April 26, 1816.)
