He completed his PhD in 2015 at the University of Exeter in the discipline of cultural geography. The title of his doctoral thesis is The quarry as sculpture: the place of making. He is working on an extended independent research project titled Tracing Granite.
David has worked in close collaboration with Tim Marsh and Trenoweth Quarry (Penryn in Cornwall) for ten years, and continues to advocate for its importance in the future of traditional methods for working Cornish granite. He has a workspace at Trenoweth Quarry.
In October 2017 David led a fieldtrip-based contemporary arts project for Groundwork called Tracing granite: In search of a white cross. In search of a white cross was an intensive 5 day field-trip through the granite districts of Cornwall and Devon with a group of science and humanities academics, artists, recent graduates and students. The group explored the legacy of the dimension granite quarrying industry of the south west of England. Audio-visual and text-based documentation is available on the Groundwork website via these links: