Heinlein did two short stories (Universe, and Common Sense) that got rolled into a single novel (Orphans of the Sky) with the generation ship premise that I'm aware of.
Clarke did Rescue Party, where it's a generation fleet fleeing the destruction of the planet.
Pohl and Kornbluth did a novel called Search the Sky that includes a generation ship, but that doesn't seem to be the focus based on the Wikipedia summary.
Clarke did Rescue Party, where it's a generation fleet fleeing the destruction of the planet.
Pohl and Kornbluth did a novel called Search the Sky that includes a generation ship, but that doesn't seem to be the focus based on the Wikipedia summary.
-Now available with copious trivia!