My Dad owns a 1970 Ford LTD. He has been trying to find someone to help him find out some historical information on his car. (i. e., how many were manuafactured, how many does Ford estimate are out there still). He found an address online and sent a letter to the Ford Motor Company. The letter was returned to him unopened because he didn't put a personal name on it. Silly, someone couldn't open it and forward to someone that could assist. He has also gone to the local Ford dealership and they were insanely rude to him, basically said they wouldn't help him.

He loves this car and would like to find out who he could write. Any suggestions?