Martin Bradbury Wilk, OC was a Canadian statistician, academic, and the former Chief Statistician of Canada. In 1965, together with Samuel Shapiro, he developed the Shapiro–Wilk test, which can indicate whether a sample of numbers would be unusual if it came from a Gaussian distribution. With Ramanathan Gnanadesikan he developed a number of important graphical techniques for data analysis, including the Q–Q plot and P–P plot...
(wikipedia)