It sure is dramatic. What a beautiful memorial.
Did you poke around down at the bottom to see if there is a tag, either attached to a lower branch or in the soil?
Or, if you don't think it's too awkward, figure out a way to ask the Cain family. The plot is obviously lovingly tended; perhaps leave a note with your contact info? I would think they would feel honored that you noticed and like it enough to ask.
