"University of Pittsburgh. University Library System. Digital Research Library." . . . "The First Steamboat Voyage on the Western Waters"@en . . . . . . . . . . . . . "Stories heard as child by author, backed up by documentation, of voyage taken by his sister and her husband, Nicholas J. Roosevelt in 1811."@en . . . . . . . . . . . . . . . . . . . . "The first steamboat voyage on the western waters" . "The first steamboat voyage on the western waters"@en . . . . . . . . . . . .