Raging Abe Simpson and His Grumbling Grandson in "The Curse of the Flying Hellfish"/References

Trivia

 * Although Grampa's military unit was known as the "Flying Hellfish," both the elaborate headstone and stationery letterhead read "Fighting Hellfish."
 * When Mr. Burns accidentally smashed Lisa's room after acquiring the Tombstone keys, Lisa mistook Mr. Burns for Santa Claus.
 * Abe tells Burns that Burns got busted down for obstructing a probe from J. Edgar Hoover.