The Great South Road
The Transport NSW has a guide on the "The Great South Road"
This guide is a bit outdated but covers some of the history of The Great South Road, (Later the M.R.B. (Then R.T.A. Now R.M.S.) renamed it Hume Highway)It is also meant to be a self-guided tour guide.
This guide is also available for download by clicking the image below.
Or visiting there Self-guied Tours Site which includes many other guides
(PDF, 3 MB)