Okay so Waldo's birthday is set to be September 1st and as we all know, that's the day on which the start of term lands at Hogwarts.
Correct me if I'm wrong but canon seems to suggest that a wizard/witch gets their letter on the year in which they are TURNING 11.
So Waldo would turn 11 on his first day at Hogwarts correct?
Just making sure, thank you.