questions about HP

[tiger_queen429]

No: HPFGUIDX 82307

I have few questions about things in the HP world that i'm not sure 
about.
1. We know that Molly is/was Sirius's cousin though marriage, but how?
I think that eihter Molly's maiden surname was either Malfoy or 
Lestrange (is that how you spell it) we know it can't be Tonks, since 
she is pureblood if Molly is the sister of one of Sirius' cousins' 
husbands. One possibility despite the lack of similarity in looks in 
that she is Lucius' elder sister this may explain the amount of 
dislike between Lucius and Authur. Lestrange could also be a 
possiblity. the only other possiblity for this would be if sirius was 
married to Molly's cousin (the girl staring at him in the DADA OWLS 
maybe)and if this is the case, then where is she?
2. We know that Voldemort said he could have spared Lily, but why not 
James? Did he do the same stand aside thing with James too? If he was 
only after Harry, then logiacally speaking James could have been 
spared too.
3. I know this question has been asked many time, but where are 
Harry's grandparents? For James' parents we could assume that they 
are dead because and the money in the valut was James's inheritace 
that passed to Harry. Though i cannot say the same for Lily and 
Petunia's parents. Why haven't they visited their daughter or their 
grandsons? Harry would know that they are dead because Petunia would 
have mentioned them at least once while Harry lived with them, or how 
come the Evan's have not even sent a card or something.

Tigerqueen