Originally Posted by
Doctor Bifrost
My favorite origin for Donna: a human girl from Man's World, who grows up partially on Themysicra and partially in a normal environment in Man's World (maybe one after the other, or maybe a bit more complicated than that), who gains powers that are similar to Diana's (through means that are not easily replicated, so "that's just what the Purple Ray does" isn't for me), and starts a career as Wonder Girl in Man's World as a teenager. And I'd like to know more about why she left Themysicra and became a superhero, what her relationship with Diana was in the early days of that (was she a sidekick?), who she lived with and whether she went to a normal school (I'd hope so), and so on. As Donna's origins have been retconned and whipped back and forth, opportunities to fill in this backstory have been largely ignored as irrelevant. (Although for a long time post-CoIE it was assumed she was secretly living in Titans Tower, and nobody, like Batman, really noticed that there was a teenager just living on her own with no guardians or schooling - I think we can do better than that!).
One of my very few pieces of thorough fan fiction is an origin for Donna that includes all that. But I've posted it here before, and I'll skip it this time.