I would say this in response, what you describe: being good at middle and high and able to get perfect grades there, isn't particularly impressive. Most good students can excel in high school. You note that things got harder for you in college, this is more normal, "smart kids" usually get found out in college when the work becomes harder. I'm not sure if you went on to postgrad education but I'd hazard a guess that if you went on to do a PhD you would have had a big shock.
My point is this, being able to "ace" teenager level work isn't actually all that big of a deal. I went to a private all-boys school where there were many, many boys who aced every piece of homework and tests they took. It didn't mean they were super special, that's just what you get when schools select for the brightest kids. Now, if they went straight from school and then aced their PhD in a year, that would actually unusual.
Must be nice to have that kind of recall at the age of 100.
That being said, some people (John Von Neumann) seem to have had fantastic visual and textual recall.
A number of artists (Kim Jung Gi) and musicians (Mozart) seem to develop excellent visual and auditory memories as well.