 In 1951 he obtained a Leverhulme research fellowship for the study of ancient fortifications, a subject inherited from T. E. Lawrence.In 1951 he resigned from his post at Cambridge to become the Professor of Archaeology at the University College of the Gold Coast where he established the National Museum and was the Secretary and Conservator of the Monuments and Relics Committee.He resigned from these posts in 1957 after Ghana became independent and soon after settled at Pateley Bridge in Yorkshire, later moving to Bouthwaite.