As education minister, Ray Williston introduced the idea of university education for teachers, among other then-radical innovations. As minister of lands and forests, he had his greatest impact. From the mega-power projects to improved forestry practices, all major industrial developments in interior and northern BC during the 1950s and 1960s had Williston' s stamp on them.
He oversaw the building of the Bennett Dam on the Peace River and subsequent flooding of the valley behind it -now called Williston Lake - and the flooding of the Arrow Lake and displacement of many people in the Kootenays, but he was a man of his times and was determined to pull rural British Columbia into the modern era.