When I removed the dash from my car, a slip of paper fell out with a name and address on it. It looked like it had been there since the 70's. I realized that it was a long shot, but old people don't tend to move house. So I wrote a letter to the person at the address. Sure enough, 6 weeks later I get a letter from a woman that was the original owner. Bought it right off the lot. Told me all the stories from the car about damage, driving mishaps, which dealership she brought the car from etc. She told me that one of her old boyfriends threw a loaded shot gun into the back seat and it fired, blowing a hole clean through the sheet metal. I was surprised because I never noticed any evidence of a repair. Sure enough, when I had a closer look, I could see the repair.
Good luck with your search, I hope it throws some info up for you, but as mentioned above, you got to be lucky.
