Which House were James, Sirius, and Remus in?

[KathyK]

No: HPFGUIDX 88706

Bobby wrote to counter some more anti-MWPP in Slytherin arguments:
 
> (1) How could Harry be the Heir of Gryffindor is James was in 
> Slytherin?  Simple: one's ancestry does not determine which House 
> you go in — one's choices do.

However, in the next point Bobby wrote about the possibility of 
Sirius being in Slytherin:

> He might be an automatic Slytherin (like Malfoy just touching the 
> Hat in PS/SS 7) — would Sirius even have time to argue and
choose 
> Gryffindor like Harry did?  

KathyK:

I know I snipped a good portion of your counter arguments but this 
is what concerns me.  In point 1 you argued that one's choice 
determines what house a student is sorted into rather than 
ancestry.  And then in point 2, you argue the opposite--and I know 
it is only one possibility but you put it there.  Sirius may have 
been sorted into Slytherin without being given a choice by the 
Sorting Hat.  

Using Draco Malfoy as an explanation of how Sirius may have ended up 
in Slytherin is problematic, IMO.  True, Malfoy says he knows what 
house he'll be in.  And as an example he uses the fact that all his 
family has been in Slytherin.  Then, indeed the SH immediately 
places him in Slytherin.  However, one must take into account that 
Malfoy clearly *wants* to be in Slytherin.  When he talks of his 
family all being in that one house, he doesn't say it as if he's 
doomed to the same fate.  Rather, it always was quite clear to me 
that Malfoy ended up right where he wanted to be.  He looks pleased 
as he heads over to sit with Crabbe and Goyle.  

While I believe that MWPP were all Gryffindors, I'm not going to get 
into a detailed discussion as to why because many of my reasons have 
already been stated by others.  You're right, we don't know whether 
or not Sirius at age 11 was already rebelling against his family's 
ideals.  This indeed would play into which house Sirius may be 
sorted into.  If he believed at 11 as Draco Malfoy does, there's not 
a doubt in my mind he'd be sorted into whichever house his parents 
had drilled into him to be the best, or the *only* house, most 
likely Slytherin from what we know thus far.  However, if Sirius is 
already having doubts about his family, it may not have been so easy 
for the SH just to shove him into the house his family was at, 
especially if the hat detected any hit of Sirius' uncertainty. 

That's it from me for now,

KathyK