The Photographer of Penllergare is the story of a life of John Dillwyn Llewelyn 1810–1882. A man with a sense of compassion, Llewelyn represented a figure barely visible to the social philosophers of the twenty-first century. He was a member of the ruling class, yet one driven by a moral conscience informed by his Quaker ancestry. The Photographer of Penllergare is the story of a master of the new art.