. . "John J. Astor and Company." . . . . "Letter regarding Talbot Chambers" . . . . . . . "A letter from Pettis, U.S. Representative from Missouri, to Secretary of War John C. Calhoun, detailing Colonel Talbot Chambers' 1817 arrest of several John J. Astor & Co. traders for trading among the Mississippi River Indians without a license, and Chambers' subsequent arrest on charges he detained them illegally." . .