The physiologist William Beaumont died at the age of 67. Here is all you want to know, and more!
Biography - A Short Wiki
Doctor who became known as the “Father of Gastric Physiology” for performing a pioneering study of human digestion. He conducted a set of experiments on the effects that temperature, exercise and even emotions have on the digestive process.
He got married to Deborah Green Platt in 1821.