He was appointed an Assistant Lecturer in English Language at the
University of Leeds in 1929, becoming a full lecturer in 1936. In 1930, he was a founder member of the
Yorkshire Society for Celtic Studies, sitting on its executive committee from 1933 to at least 1939. During the Second World War from 1940 he worked for the
Foreign Office, but remained on the books at Leeds, before returning to academic life in 1946, at first to his Leeds job, but in the same year becoming a Lecturer in English Language at
Birmingham University.. He became
Reader the following year. He was Professor of English Language at Birmingham from 1948 to 1951 and Professor of Linguistics 1951–74. In an article published in 1954, he coined the terms "U" and "non-U", on the differences that
social class makes in
English language usage. ==Personal life==