Any teachers in Harry Potter having family, children...?

I can't remember the exact quote, but JKR has definitely said that some of the Hogwarts professors did have spouses, it was just never mentioned in the books. We will just have to wait for the encyclopedia to find out about them I guess!

Will edit later if I can find some proof.

EDIT

Ok, all I can find so far is a question from a 2001 interview, its not very helpful though:

Have any of the Hogwarts professors had spouses?

JKR: Good question - yes, a few of them, but that information is sort of restricted - you'll find out why..

James, Lilly, and Albus Potter's generation had professors that married, but I don't think Harry's did.

Neville married Hannah Abbott furr shurre :)

I think the teachers can get married, but don't since they have to live in the castle.

probably not. well, there's hagrid gonna get married i think...

maybe teachers at hogwarts cant be married?

just how it turned out. if they had been married the book would be so different!