Why does Kitty Farmer relate Graham Greene to Bonanza?

from Movie FAQ – Donnie Darko on Rap Genius

Meaning

To highlight Kitty’s stupidity, she is getting confused with Lorne Greene, an actor who played a character in Bonanza.

Graham Greene is the famous author who wrote The Destructors, the short story that Donnie’s class is reading, and which subsequently causes problems for the teacher Karen Pomeroy.

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