Interesting Jeppe history - Mystery of another wall!

I am currently doing research to find out about the retaining wall that supports the top field that runs alongside the Memorial Hall and the Innovation Hub. There is a story told that it is the longest dry- stacked wall ........ built by Italian Prisoners of War.

Initially I was focusing on this wall .....

...... until I came across this photo of a hurdler. Look behind his bicycle. There is another wall running at an angle going the other way. Right where the Memorial Hall is built now. I wonder if they just covered it up or did they remove it. Is it still there?

How many other walls are hiding in the Jeppe Landscape. We need LIDAR!!