William Tutte was a British mathematician known for his significant contributions to graph theory and combinatorics. Born on May 14, 1917, he played a crucial role in the development of mathematical concepts that are widely used today, including Tutte's theorem and Tutte matrices. His work laid the foundation for many applications in computer science and network theory. During World War II, Tutte worked as a codebreaker at Bletchley Park, where he helped decipher the Lorenz cipher, used by the German military. His efforts in cryptography were vital to the Allied war effort. Tutte's legacy continues to influence mathematics and related fields, and he passed away on May 2, 2002.