Wall was married three times; first to Betty Tucker on 10 August 1950, an artist and poet whom he divorced in 1973, second to Vera Ronnen on 26 August 1976, an artist from Jerusalem whom he also divorced and finally to Mary McLellan on 6 May 1999. Wall was a chain-smoker, and enjoyed bird-watching outside of his work, although he preferred not to talk about his personal life. An exception to this was politics; Wall was fervently left-wing, and had set up various student and other organisations to support various causes. In 1996 he was diagnosed with prostate cancer after collapsing while on holiday in
Cork. After treatment he went into remission, which held for five years; the cancer returned in 2001, and after a kidney operation on 2 August he discharged himself on 8 August so he could die at home. While suffering from cancer he had published the book
Pain: The Science of Suffering. His body was left for medical dissection. ==References==