I recently posted 1940 tax photos on a facebook group devoted to the neighborhood I've lived in for almost the last 40 years. It's a neighborhood that's remained more unchanged then most as families pass on homes from generation to generation. Often many people from the same family live nearby. The local parish has also provided an anchor and a 4 block strip on an avenue still has many mom and pop stores. Even those folk who move stay in touch with family and friends that haven't. The posting of these pictures became the impetus for remarkable memories.