One of the books that Toole possessed was J. D. Salinger's Franny and Zooey. Several studies have explored the thematic connections between A Confederacy of Dunces and Catcher in the Rye. The evidence is solid that Toole held Catcher in the highest esteem (see the discussion of this in my paper Evidence of influences on John Kennedy Toole's "A Confederacy of Dunces," including Geoffrey Chaucer, page 20 in version 2.0), so one could readily argue that the thematic connections are in fact evidence of the influence on Toole of Salinger's book. However, there has been no exploration of the connection between ACoD and Franny and Zooey. For example, Franny is apparently an attractive young woman, but she finds the world around her shallow and cannot bring herself to participate in the society around her. Confederacy has its own recluse who rejects his society and who is sometimes mistaken for being female.
Thesis: Explore possible connections between Confederacy and Franny and Zooey.