Joy Packer was born and educated in Cape Town, graduating as a journalist from the University of Cape Town. She worked initially as a free-lance journalist, in 1931 becoming a reporter for London's Daily Express. After this she spent time on radio in Hong Kong as well as a stint writing for British publications in the Balkans. World War II saw her as a broadcaster to South Africa for the BBC, then later working in the Ministry of Information in Egypt, as at Allied Headquarters in Italy. Her travelling was tied up with her marriage to a British admiral, Sir Herbert Packer.

When her husband was knighted in the 1950 Honours list Mrs. Joy Packer automatically became known as "Lady Packer", a courtesy title.