@tweety- HSAM, "Highly Superior Autobiographical Memory." I have her book. Only a few dozen of them identified so far.
Another is Eidetic memory aka "Photographic Memory." Several here are pretty damn close; @TRLB is one; I'm another. I don't have the *total* detailed recall of 'biographical' memory, but do pretty well, and much of it, *wish* I could forget. Also if I read something in a book, I can tell you about how far into the book the passage was, which side of the page and how far down. Fun.
@MrHate has a Pornographic memory - He can tell you where a certain photo is in a gallery from several years back!