14. Benjamin Donn 1765 A Devonian, Benjamin Donn was born in Bideford in 1729. He was a well-known mathematician, writing several articles and letters for the Gentleman´s Magazine , as well as completing his Mathematical Essays between 1756 and 1758. He was a surveyor and teacher of mathematics in Bideford before moving to Bristol. Also interested in tidal flows he published sets of figures for the S W of England. His large-scale map of Devonshire with its inset plan of Exeter is an important map for anyone interested in Devon topography in the eighteenth century (B&B 44). In 1759, the same year he married Mary Anne Wilcocks , the Royal Society of Arts ...