Jack Chalker studied at Goldsmiths College, London between 1936 and 1939 and went on to the Royal College of Art after the war attending the painting school. His early influences during training were Walter Sickert, Ruskin Spear and Stanley Spencer both of whom he knew personally.
His war years and Japanese prisoner of war experiences created a body of work which have formed a permanent exhibition in TheWar Exhibition Hall, Thailand, opened in October 1999. The same year works were exhibited at the Peace Museum Kyoto. His work has been featured on film and television during the 1990's and he has exhibited as far a field as Australia.
Whilst confining his painting mediums to oils he uses gouache and pen for the medical and surgical illustrations that he is also known for. His membership of The Medical Artists Association of Great Britain and consultancy for Birmingham University form a contrast to his career as an artist. He has lectured at Bristol University and also recently at the London Arts Club.