Since then, Barbara's had a long history of retcons herself. Initially a librarian with a doctorate, she later became a congresswoman and then a forensic information specialist (whatever that is), and currently, she's regressed back to a teenager with no particular direction.
What has remained true to her story, however, is that she was shot by the Joker in Alan Moore's seminal Killing Joke, and as a result became wheelchair-bound for a period of time, serving as a master information hub for the whole Bat Family under the moniker of Oracle.
By the miracle of comic books, she's back to crime-fighting, however (though many fans are incensed about it). For the purpose of this blog, we're looking at a pre-wheelchair Babs from her earlier origins, so no need for controversy.