Slytherin Purebloods?

[Geoff Bannister]

No: HPFGUIDX 88181

--- In HPforGrownups at yahoogroups.com, "justcarol67" 
<justcarol67 at y...> wrote:

Troels: 
>  There are, and has been, several half-blood wizards in Slytherin.
> >     Tom Riddle, Millicent Bulstrode and Tracey Davis.
> 
> 

Carol:
> Tracey Davis? I can't remember encountering the name. Where is it
> mentioned and how do you know that he/she is a "mudblood"? And can 
you
> tell me where Millicent Bulstrode's parentage is mentioned? 

<snip>

> It seems odd
> that Pansy Parkinson would tolerate Millicent's presence in her
> dormitory she knew she was a "mudblood."

Geoff: 
Isn't there some confusion here? Troels lists three names as "half-
bloods" and you're picking up on two of them as "mudbloods".
They can't be both....