The story of John Robert Mortimer (1825-1911) encompasses both the beginnings of archaeology as a scientific study and the details of a life lived entirely in one small corner of the East Riding of Yorkshire. During the second half of the nineteenth century archaeology made the transition from antiquarian pursuit to fledgling academic discipline. Mortimer, a corn merchant from Driffield, was of central importance, laying many of the foundations on which the subject came to be built. He devoted most of his adult life to the systematic and careful examination of large numbers of prehistoric burial mounds and other ancient features on the Yorkshire Wolds, eventually becoming a nationally recognised authority on the subject.