Now go back and read Book 1 again. The first wizards he really meets in the first book, are the last ones mentioned in the epilogue. Neville, Malfoy, Ron, Hermione, Ginny.
As Ravenclaw's door said: a circle has no end.
It’s buried now, but I said way up thread that the second I was done I had the urge to re-read the entire series. After I finish listening to DH on CD, I’m going to start the series over again.