Smith was born in Broken Hill, Northern Rhodesia (now Kabwe, Zambia). He was educated in South Africa. He was married four times: the first two marriages ended in divorce, his third wife died of brain cancer in 1999, and married his last wife in 2000. He had four children. He lived in London and Cape Town, South Africa.[3]
Smith died on 13 November 2021 at his home in Cape Town at the age of 88.[4][5]