Neville in the end / Pureblood Question

[justcarol67]

No: HPFGUIDX 104138

Tina asked: 
> A lot has been established about Harry being a half blood. But a 
> half blood is someone that is born of a wizard and a muggle. That 
> said, wouldn't Harry in fact be pureblood since both parents 
> (regardless of their parentage) were a witch and a wizard?

Carol:
I wondered the same thing when I first joined this group. Someone
(can't remember who) explained to me that Lily as a Muggleborn
contributes Muggle blood; James as a pureblood contributes wizard
blood; therefore Harry is a halfblood just as he would be if his
mother were a nonmagical Muggle.

Put another way, he has two wizard grandparents and two Muggle
grandparents--again, half and half.

BTW, it's possible that Lupin, whom JKR tells us is a halfblood, is
also the child of a Muggleborn and a pureblood rather than a witch or
wizard and a Muggle. I personally would like to find that out. 

Carol