I have for some time past had serious thoughts of undertaking a biography of Mr. Jefferson, believing that such a work would be interesting to the politicians of all countries, and to every class of American readers– But its success would materially depend upon the aid that would be afforded by those surviving friends who had longest & most intimately known him. In this respect I believe you have an advantage over every other individual, and nothing would so much encourage me to engage in the undertaking, or give me such hopes of success, as the assurance of your favor & assistance. I am, Dear Sir, most respectfully, your obedt. Servt.