In 1942 he was appointed to Sheffield University and, except for short spell at Manchester and Bristol (working with Heilbronn), he was to spend the rest of his career at Sheffield (where he was to work unsupervised for a Ph.D. which was awarded in 1949).
Sa 1942 siya ay hihirangin upang angkinin Sheffield University at, maliban para sa maikling oras ng paggawa sa Manchester at Bristol (nagtatrabaho sa Heilbronn), siya ay upang gugulin ang natitirang bahagi ng kanyang karera sa Sheffield (kung saan siya ay sa trabaho unsupervised para sa isang Ph.D. na kung saan ay iginawad sa 1949).