- Iowa Center for Textual Studies (4)
- Twain, Mark, 1835-1910 (4)
- Baender, Paul (1)
- Branch, Edgar Marquess, 1913- (1)
- Firkins, Terry (1)
- Fischer, Victor, 1942- (1)
- Gerber, John C. (1)
- Hirst, Robert H. (1)
- Jones, Mary Jane, 1938- (1)
- Salamo, Lin (1)
- Smith, Harriet Elinor (1)
- Stein, Bernard L. (1)