At one point last week, I had about 15 spare minutes, so I went to pick up a letterbox. Here was my photo-journey through the clues:
Also in the park is the Chautauqua Auditorium, an unusual octagonal 2500-seat open-air auditorium, which was built in 1902 to accommodate the throngs of people attending the annual Chautauqua Assemblies.
the box can be found in the little garden area between the Chautauqua Auditorium and the smaller octagonal building behind it.
It was at this point that I got a little distracted away from the clues towards this tree...
How cool is that!...
Behind the garden area is a plaque for the Leta Mae Cunningham Hight Pavilion and Plaza.
Standing with your back to that sign and facing the Chautauqua Auditorium, turn left and walk to the steps.
Find the step with the bricks that say Whiteselle Corsicana.
Stand on that step and facing the garden reach right inside the brick wall under the ground cover and you will find the box