Walter Phillips was first invited to teach at the Banff Summer School in 1940. The following year, he was also invited to teach at the Provincial Institute of Technology and Art in Calgary. With all the children settled except their youngest, Walter and Gladys Phillips moved to Calgary in the fall of 1941. He was now 55 and the proximity to the mountains now allowed him to concentrate on the mountains as far as his subject matter was concerned. After the War, Phillips decided to build a home in Banff. His work as a watercolourist reached new heights at this time, although his activity as a printmaker diminished. He made no prints after 1952.