Education
Stephenson was born in Sydney and attended Newington College (1965–1972) commencing as a preparatory school student in Wyvern House.
Stephenson was born in Sydney and attended Newington College (1965–1972) commencing as a preparatory school student in Wyvern House.
He studied at the University of Tasmania and the University of Sydney. In 1988 he was the inaugural curator of the Liverpool Bicentennial Museum. From 1990 he worked at the National Trust of Australia (NSW) and spent seven years as the Senior Curator.
In 2001 he was appointed the Director of Historic Places, ACT, in Canberra and from 2006 was the Chief Executive Officer of the National Trust in South Australia.