Not only does Waterloo have a world-class C-&-O department, they also had a hero from Bletchley Park - Dr William Tutte, a kind gentle genius that never bragged

Not only does Waterloo have a world-class C-&-O department, they also had a hero from Bletchley Park - Dr William Tutte, a kind gentle genius that never bragged about his accomplishments (he didn't talk about it, even to his family!) He broke the 'Lorenz' cipher (generally regarded as much more difficult than Enigma) Almost all modern Graph-theory and Matroid analysis is built on his work. --- Mike Norman, B.Math UofW 1986