Without the VIN number youre looking at a long shot, but it can be done. I managed to fing a 55 chevy my Grandpa used to own just by goin through owners and by miracle they had info on the person each of them sold it to. Its a slim chance but it may be your only way. Now that I think about it you might could check with the DMV if you know relatively wherer the car is. Just a thought. Good luck man