Turner was a phenomenal painter all around. By another hand I might call that a pastiche of classical harmonies, but his fingerprints are all over the middle and far distance, where light, color and blank space are used to suggest form rather than insist upon it. You're right to cite his Garden as one of the better ones.
One of the books I read while I was surveying was Measuring America by the Scottish historian Andro Linklater. Thomas Jefferson had an image in his mind for what land use would look like if put to the service of maximizing his democratic ideals. As you say--plowed under or built over now.