I can't always recognize who did a certain print, but I'm frequently right. In a couple of camera clubs I've been in, when images are judged on competition nights there are no names visible. I've still been able to tell whose they were with very few exceptions (and even when I'd been in one club for less than a year). But I don't think I've seen enough of the "greats" to know theirs as well (though I do know some). I can definitely tell certain images in the gallery here.
I wonder if the ability to know whose are whose is connected to whatever part of my brain I used as a chemist to know that a certain item I was seeing in the microscope was X, Y, or Z.