I've been (lazily) trying to research accurate information on Minerva Mcgonagall, Pomona Sprout, and Filius Flitwick's ages... but I've not found anything.
I'm not sure if Sprout's and Flitwick's ages are known at all, but McGonagall's age is supposed to be around seventy, I think.
So mostly I need help on McGonagall's age. How old would she be in 1997 at the end of Deathly Hallows, and what year was she born in? How long has she been teaching?
If anyone could give me the right info on McGonagall, and maybe even guess at the other two, I'd be really grateful!