15th Batt. Australian Imperial Force. He is remembered with honour on the Lone Pine Memorial, St. Michael and All Angels Church Memorial and Helensburgh War Memorial, Column 1 Line 35.
The family home was 18, Colquhoun Street, Helensburgh, the son of George Robertson and Williamina McIntosh Robertson (Mina).. Siblings: David had three younger brothers, George, Hector and James and a sister Jessie. George served with the Argyll and Sutherland Highlanders.