Louise Keaton, Buster's little sister. It's a darn good characterization, too. And she only has one line.
Several small companies specializing in public domain movies have released it. Beware. Some small distributors market copies of both public domain and copyrighted films with poor picture and sound. Others are more reputable and deliver good transfers of the best available prints. Shop around.
You can begin your search here at Amazon.com.
Watch Li'l Abner (1940) on:
archive.org here
YouTube (posted by hollywoodclassics) here (link goes to the first of 10 parts)
