The Photographer’s Son Stephen Orr   On from Barmera, towards Cobdogla; all the way round Wachtels Lagoon to Moorook; then half-way to Loxton. Country that had been over-grazed, stripped of vegetation, the soil left to wash and blow away, exposing limestone in honeycomb sheets that could be cut (and had been) to make blocks for building. Then south along the Murray River, the small ghost-filled inlets with their marshes and shouldn’t-have-been-planted willow trees. Along Alcott Road (keep going, keep going, all the way to the water) to the farm that no one knew about, or visited. Hugh Heyward had started…