Peter James Witherow was a consultant orthopaedic surgeon at the Bristol Children’s Hospital, Bristol Royal Infirmary and Winford Orthopaedic Hospital. He was born in Birmingham in 1935, the son of James Witherow, a doctor, and Greta Eileen Witherow née Roberts. He was educated at Epsom College and

David Lightowler was a consultant orthopaedic surgeon in Billericay and Basildon, Essex. He was born in Horsforth, Leeds, on 30 January 1936, the son of Charles Lightowler, a company director, and Isabel Mary Lightowler née Buttle, and obtained a scholarship to Giggleswick School, where he excelled