This particular search has been typical of many that we do. We often get a lot of information initially that seems to be leading us to an easy result. However, as is often the case, we end up getting to a point where all the information seems to dry up.
Robert somehow made it to Townsville and enlisted there in March 1915, initially serving with the 4th Light Horse Brigade Field Ambulance, being transferred to the 15th Field Ambulance in March 1916 in Egypt. He then served in France/Flanders being commissioned to LT from LCPL at the end of the war. His service papers and an allotment file explain the situation with his children and wife.
When he got home to Tasmania after the war Robert and Leah divorced (Hobart Mercury article July 1924). He subsequently married a lady named Revie and they had children named Jan, Roberta, Robin, Jill and Simon. He served on as a CPL in WW2, reducing his age by 8 years. Robert appears to have copped a few mentions in the paper over the years, including one in which Revie was injured in a traffic accident.
Robert died on 21 November 1953 and this time was living at Windsor St, Kingston Beach, Hobart. In the notice of death in the Hobart Mercury his family members were listed, including his daughter Leah who was by then married with the surname Uhr-Henry.