Ages

[Talisman]

--- In the_old_crowd at yahoogroups.com, "Talisman" <talisman22457 at y...> 
wrote:
>I haven't pulled the cite, but I well recall Rowling being asked
>whether DD was Harry's grandfather. She responded with another
>question, to the effect of "If he had other relatives, why would he
>have to go to the Dursleys?"

It's even better, it covers relative, albeit *close:*

Official Site, Section: Rumours

[Rumor] Professor Dumbledore is Harry's real grandfather/close 
relative of some description.

 [Rowling] "If Dumbledore had been Harry's grandfather, why on earth 
would he have been sent to live with the Dursleys?"

She obviously avoids the question, as well as raising another that has 
chaffed me for a long time....i.e. the whole Privet Drive business.

Talisman