Will you be so good as to inform me to what place I should address a letter to James Lyon, son of Colo Matthew Lyon. it is so long since I have heard any thing of him, that I am quite uninformed of his residence, and have occasion to write to him.  Let me take this occasion of thanking you for the new, post book, which is a daily convenience to me, and of renewing the assurances of my constant esteem & respect.

Th: Jefferson