I am teaching My Antonia, and came across this little cutie: 

 http://www.everywritersresource.com/writingsense/2010/05/mark-twain-is-a-slob-by-willa-cather/

This might explain why Cather was not seated at Twain's table at his notorious 70th Birthday Celebration.  

Dustin Zima
Quincy University