Suffered a stroke and had to be moved to St Luke's Hospital in Headington, England. He passed away three years later on May 22, 2008.
Moved to Oxford, England in the 1990s and exhibited his work in the Ashmolean Museum, the Vale and Downland Museum and the Oxford Museum. His elder son John is a curator at the Oxford Museum.
It was Harry's wife, Daisy, who inspired the last scene of 2001: A Space Odyssey (1968), when Hal the robot starts singing the song standard "Daisy, Daisy".