McGonagall and Flitwick

[Anastasia]

No: HPFGUIDX 108056

I'm really sorry if this has been discussed before. However, I 
couldn't find any posts about this, so here it goes.

In PoA, Lupin indicates that DD became Headmaster when Remus was 
already several years old:
"It seemed impossible that I would be able to come to Hogwarts 
[because of being a werewolf]... But then, Dumbledore *became* 
Headmaster,..." (emphasis mine)

We already know from SS/PS that DD was the Transfiguration teacher. 
But then again, McGonagall tells Umbridge that she has been teaching 
at Hogwarts for 39 years in OotP! According to JKR, Snape (and 
therefore Lupin, too) is 35 or 36 years old.

That leaves 2 possibilities: EITHER McGonagall or DD have been 
teaching something other than Transfiguration for several years OR 
DD was not at Hogwarts for several years before he was appointed 
Headmaster (which IMO is very unlikely).

Strange, isn't it?
Somehow I tend to think that McGonagall or DD might have taught DADA 
for a couple of years.

By the way, I just realized that McGonagall seems not to be in the
photograph of the original Order that Moody shows Harry. Of course, 
it could be that she is somewhere near Harry's parents, and Moody 
just didn't have time to point her out. I rule out the possibility 
that she wasn't in the Order, because she has taught at Hogwarts for 
so many years and is so close to DD...

It is also possible that she wasn't there when the photograph was 
taken, but this would also indicate that several people might be 
missing. Now I come to the point which interests me - what about 
Flitwick? Was/Is he in the Order?

As far as we know, Flitwick is clever and can use his wand properly
(otherwise he wouldn't be Head of Ravenclaw). He's been teaching at 
Hogwarts since at least the Marauders' time. He's definitely very 
loyal to DD, although he is not as close to him as Minerva or Snape 
are.

There isn't any canon telling us that there aren't more members in 
the Order than those we already know about.

What do you think?

Anastasia