Well it's like predicting rain. Nobody says that it will rain for sure but usually they'd say 90% chance or something to the effect. So based on Google result as stated by LC69 my prediction on whether the girls are really the one in the pics is thus:

1) 50%

2)  10%

You may not want to even bother with 2) simply because the odd is piss poor and she's obviously TGTBT. OTH you don't lose much by schedule with 1) then upon seeing the person at the door be prepared to walk away if she's not the same one in the pics