Homer briefly works at the "Boris Car Loft", a reference to Boris Karloff.
The ambulance Homer buys is based on a 1959 Eureka Cadillac ambulance formerly operated by the Bogota, New Jersey Volunteer First Aid Squad.
Marge denotes the similarity of the picture behind the couch to the classic novel, Moby-Dick (the picture is, in fact, called "Scene from Moby Dick"). It inspired her novel, when she thought "No one's done a book about whaling before!" Moreover, her book is about whaling and its ending has Temperance's husband dying in a similar manner to that of Ahab, from the same novel.