..., through the desire to promote the fur trade or immigration, and through semi-scientific or scientific curiosity, to the impulses of the literary artist or to the religious aims of the missionary. George Rogers Clark , Logan, and Boone were pioneers. Fearon, Darby, and Faux came to study conditions for emigrants. Bernard, Tyrone Power, and Fanny Kemble were actors. Wilson, Nuttall, and Audubon were professed...