Denison 150: 1972-2022 Join us as we explore Denison’s past and celebrate our bright future in this exciting four-part series held at City Hall on the second Tuesday of each month in January, February, March, and April. Few things could top a celebration like that in ’72, but Denison was up to the task. A Class 4A State Football Championship win, a beautiful new Texoma Medical Center, and a state-of-the-art Denison High School all helped Denison continue celebrating right on into its 150th birthday. Join us as we see what all the excitement has been about these last few years leading up to our big birthday bash!