Arthur Harwood Deen was born on August 26, 1896, in Austin, Texas. He earned his BA and MA degrees from UT in 1918 and 1922, respectively. Deen was an Instructor at the University from 1920 to 1924. He became an Associate Professor in 1930. He was Chairman of the Department of Geology from 1941 until 1952, when he resigned from the University. Dean commonly taught one of the large introductory courses in geology in a dynamic style remembered by students decades after they left UT. He developed one of the nation’s most extensive field training programs in geology during his chairmanship.

Deen was a member of the American Association for the Advancement of Science, the Southwestern Geological Society, the New York Academy of Science, and the Texas Academy of Science.