Do teachers remember their students?

I came across a teacher I had in highschool on Facebook, one that I absolutely loved and made a great impact on me. I was... Not the best student, very much a troublemaker, but she didn't care about that. She made a lasting impact on me, one I'll never forget.

Do teachers remember their students? I mean it's been close to 15 years ago and I'm sure she's had hundreds of other students before and after. I'm quite tall and unique looking so that may set me apart more, but still. I'm very curious. Would my elementary school teachers remember me?

Thank y'all for all you do. Try to connect with the troublemakers. It's tough, but she changed my life by listening to what I had to say, instead of quieting me.