I just watched "He Knew He Was Right" on PBS television.
Here are two interesting links
http://www.pbs.org/wgbh/masterpiece/.../trollope.html
http://www.pbs.org/wgbh/masterpiece/heknew/links.html
The Gutenberg Project has free download of "He Knew He Was Right" plus many other novels by Trollope.
His biography is interesting.
He seems to have been neglected by academia over the years. You will not find anything about Trollope at sparknotes.com