He joined the Faculty at the University of Texas as an Instructor in September 1935, after being awarded his doctorate in that year, and he was promoted to Assistant Professor in September 1940.
Sumali siya sa mga Faculty sa University of Texas bilang ng magtuturo sa Setyembre 1935, matapos na iginawad sa kanyang titulo ng doktor na taon, at siya ay itaas na Assistant Professor sa Setyembre 1940.