Despite his short professional life John Perry achieved much for he was an outstanding figure in the post-war growth of hospital pathology in Australia. His career has been detailed by Vernon Plueckhahn in the first John Perry Memorial Oration.

Whilst some remember him for his quick wit, others for his biting tongue, or his ability to tell a risque story without offending anyone, most will remember him for his ability to lead a team. As director of pathology, Royal Children's Hospital, Melbourne he engendered loyalty in every member of his staff. He was determined to provide that hospital with a laboratory service second to none. However he insisted that his department's service should not be abused and the resident medical officer who perpetrated such an offence was told so in no uncertain terms.

John was an astute politician who could present his arguments in a forthright, logical and convincing manner. He was therefore able to obtain staff and equipment which he believed necessary for his beloved department. He continually planned for the future, as was exemplified by his addition of a virus laboratory in 1952 - a unique feature for a non-infectious disease hospital in Australia. John convinced Sir Macfarlane Burnet that it was needed, and it was Sir Mac who persuaded the board of management. It was at times like this that John used his powerful friends - men like Burnet, Ian Wood, Bill Keogh, Edgar King. They were happy to back John for they realised his ability and his honesty. Medical politics were meat and drink to him, so his prominent role in the formation of the College of Pathologists was to be anticipated.

His last professional role was medical director of the Royal Children's Hospital. In the four years during which he held this position his health was failing and he had neither the time nor the energy to pursue the goals he had set himself.