Career
Dunbar was a prominent actor in American and British silent films, particularly in westerns, but switched to playing more minor roles after the arrival of sound. In later years he appeared mostly in British-themed Hollywood films. He was one of the first film actors beginning his screen career with Pathe Freres, Paris in 1910.
Previously he was an actor on the legitimate stage both in Australia, his homeland and in Britain.
He had one sister, Miriam Kathleen (Strachan) Dunbar who remained in Petersham, New South Wales. Miriam married William Thomas Strachan, the children of that marriage being Miriam Kathleen and William James Strachan.
The Strachan family included Graeme Ronald (Shirley) Strachan, a media personality and lead singer of the 1970s rock group Skyhooks. Miriam Kathleen married Ronald George Fordham, who perished as a prisoner of war in Malaya during the Second World War.
Miriam Kathleen died in 1944, leaving Brian Ronald and Joan Fordham.