I am not a very observant person. This is not a trait that I am proud of. A new restaurant could go up in my back yard and I would not notice for months. I have walked by this rock dozens of times since moving to the park, and never once noticed that there was a plaque on it. Never mind actually reading it and knowing that Abraham Lincoln's son stood there and read the "Declaration of Independence" on July 4, 1860. Now, I think that is pretty cool. I should learn to open my eyes a little more.