1Thomas Jefferson to John Laval, 11 April 1819 (Jefferson Papers)
Grimm, Friedrich Melchior, baron von; Correspondance littéraire, philosophique et critique [index...
2Thomas Jefferson to John Laval, 3 May 1819 (Jefferson Papers)
Grimm, Friedrich Melchior, baron von; Correspondance littéraire, philosophique et critique [index...
3Thomas Jefferson to John Laval, 4 June 1819 (Jefferson Papers)
Grimm, Friedrich Melchior, baron von; Correspondance littéraire, philosophique et critique [index...
4Thomas Jefferson to John Laval, 5 July 1819 (Jefferson Papers)
Grimm, Friedrich Melchior, baron von; Correspondance littéraire, philosophique et critique [index...