Yes, both of Harry's parents were magical, but his mother was of "Muggle Blood". She, like Hermione had parents that were non-magical. It says in one of the books that occasionally a muggle family will have a magical child. Harry's Aunt Petunia (his mother's sister) is definiatly a muggle!!
Harry's mother was a witch, but she was born to Muggle parents, which to Voldemort's followers and sympathizers practically makes her a Muggle. Like Hermione, to them she would be a "Mud-blood" and therefore not a pure witch.
The other three books also make pretty clear that Lily was muggle-born. Like Hermione. So I guess that some people (~cough~ Slytherins) would consider them as good as muggles anyway...
This makes you wonder then. When a muggle family...(i.e. Lilly & Petunia Evans....Hermione Granger)gets an owl from Hogwarts school of Witchcraft and Wizardry, what makes them think that it is not a joke. What prevents them from totally flipping out of just laughing at the whole prospect. Hagrid only got Harry from the Dursley's because Dumbledore knew that they weren't going to let him come back.
This in response to Matrix3311. You know how Harry kept noticing strange things going on before he got (or didn't get) his letters? Well, maybe the muggle-borns noticed stuff like that happening, and related it to the letters.
Ummmm, Matrix, there is a little problem with your theory about Hagrid only coming to get Harry because the Dursleys wouldn't let him go, how would a muggle born kid get into Diagon Alley without a wand? Hagrid must come to help out EVERY muggle born first year, it only makes sense.
I also have a question about Muggles. What stops them from telling other muggles who don't have witch/wizard children about it? Surely they can't ALL be like Petunia and Vernon, who wouldn't tell anyone because it would ruin their reputation or are ashamed or whatever. And it seems kinda risky if they just tell the Muggle parents not to say anything and leave it at that. Although I suppose maybe they're afraid others wouldn't be so open about it and that they're safety is in jeopardy...I don't know. Anyone?
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Heh-very funny requirements. where did you see that it said his mom was a muggle??? Harry's mom was like Hermione.. she had magical abilities, yet never knew it.
In the first book, it calls Lily Potter a muggle, but it doesn't come right out and say it. It says that Aunt Petunia was always jealous of Lily because their parents were always favoring Lily because she got the letter from Hogwarts.
Hagrid brought Harry to Diagon Alley because the Dursley's sure weren't going to do it! Maybe the rest of the Muggle parents get directions to another entrance? Use your imagination!
Well, maybe Muggle first years get an extra sheet of paper detailing how to get into Diagon Alley. Remember, Hagrid was flabbergasted when he found out that Harry didn't know anything about the wizard culture. If Harry had known, he wouldn't have need extra explanations, correct?
Sugarfly-
I've often wondered about Muggles finding out because they know wizards with Muggle parents too, but I think we're thinking too hard. For purposes of the book, Muggles must not know about wizards and we just have to accept that. I've also thought about how wizard children get out of public school so they can go to Hogwarts without the government knowing and without their friends realizing. Oh well, I'm thinking too hard.
Answering moonstar here, in the Deathly Hallows, Harry goes into Snape's memories and sees Lily get Sorted. It specifically says 'Evans, Lily!' and I'm assuming her and Petunia have the same maiden name, seeing as they're sisters.