Yes, you are in the right forum.
My point is that if you are looking for something for a May 66 car, and someone replies that their August 64 DSO 41 car was sold at dealer X in town Y, by the time May 66 rolled around that dealer might not have existed, or it was known by another name.
If you are looking to create a database of all DSO 41 possibilities for 64-1/2 through 66 then the answers you get should be what you are looking for.
I just wanted to make sure your needs are met.