Oh Look, Everyone Was Wrong
One page from Superman/Batman #61, and the resolution of a previous quandry.
Turns out it was not Robin Lois, its...Lana Quinn.
There's some other decent mish-mashes, but I think Ravanna was the best. I'll post it if someone wants, but after the spirited discussion on the prospect of Robin Lane (Totally should have happend!), I thought I'd post the answer!