1From Thomas Jefferson to Antoine Louis Claude Destutt de Tracy, 14 February 1806 (Jefferson Papers)
I have to return you my thanks for the very acceptable present you have been so kind as to make...
2From Thomas Jefferson to Antoine Louis Claude Destutt de Tracy, 5 November 1823 (Jefferson Papers)
I cannot but have appeared remiss in my acknolmts of the several lres with which you have favored...