Here are a couple of images that made me very happy when I was researching silent movies made in Montecito. I knew from reports in the local newspaper that this 1916 movie was filmed at a certain estate there. On the left is a scene from the movie Ancestry, and on the right is an image of the estate on an old postcard. If you look carefully, you can see that the location is the same.
Thanks to the fact that there are numerous early photographs of the Montecito estates, I was able to do similar match ups for about 20 movies of the 60+ movies filmed there.