1973 Dodge Dart Sport

I'd suggest writing the state DMVs in the area asking 1) is it currently registered? 2) what is the last date it was registered in that jurisdiction? 3) is there any record of the car being scrapped in that jurisdiction? 4) Can you get photocopies of title documents for that VIN? Cost? Forms? etc. I did this to establish the ownership trail of a car I had purchased. You may even be able to do this, these days, by e-mail.

You're not flirting with any privacy issues on the first 3 questions. States may be a little leery of letting out the latter. However, you are asking for a document that is not going to be of any value in actually transferring title to the car.