Random facts about the Weasleys

[Mimi Barker]

No: HPFGUIDX 98792

On her new website, JKR states, "Before her marriage Mrs. Weasley was 
Molly Prewett. As you will note from chapter one, Philosopher's 
Stone, she has lost close family members to Voldemort."

Ok, I just reread chapter one of Sorcerer's Stone (I have the 
American edition), and can't see where anything is that I could note 
indicating that Molly Prewett Weasley lost close family members to 
Voldemort. True, OoP, tells us about Gideon and Fabian Prewett when 
we are introduced to the first members of the Order, but not in 
chapter one, and I refuse to believe that JKR could commit a double 
flint on her website, by citing not only the wrong chapter, but the 
wrong book as well. Or could she? 

Can anyone show me where I'm not reading between the lines carefully 
enough in PS/SS? Surely this isn't a difference between the British 
and American editions?

Mimi, befuddled