== Einzelnachweise ==== Literatur ==== Weblinks ==* Guide to the William McKendree Gwin Papers at The Bancroft Library* Senator William Gwin and the Politics of Prejudice by Howard A. DeWitt ###>==Notes====References==* Retrieved on 2009-5-11==External links==*Guide to the William McKendree Gwin Papers at The Bancroft Library*Senator William Gwin and the Politics of Prejudice by Howard A. DeWitt