Charles Stewart Todd entered the army in 1812 as acting Quartermaster of the northwestern division, and three years later he became Inspector. He was Secretary of State under Madison in 1816, a member of the legislature in 1817 and 1818, and chargé d'affaires to Colombia from 1818 to 1823. He prepared sketches of the life of General Harrison in 1840. He edited the Cincinnati Republican and accompanied Harrison to Washington in 1841. He was selected US Minister to St Petersburg by President Tyler in 1841, and held the position until 1846. The Whistlers knew him personally when in Russia.
Herringshaw's Encyclopedia of American Biography, p. 935; Who Was Who in America. Historical Volume, 1607-1896, Chicago, 1963, p. 533.