Here’s another weird request

Can you point me toward any spec-fic short stories–sci-fi, fantasy, horror; specific genre doesn’t matter–that are less than 10K long (preferably less than 6K), but take place over multiple generations or historical periods?

Yeah, I know. Oddly specific. 😛 I have an idea for such a short story, but as I’ve never tried writing one like that, I’d like to see how other people have structured it.