Lewis William Buck (1784–1858) of Moreton House, Bideford, and Hartland Abbey, Devon, was Member of Parliament for Exeter 1826–32 and for North Devon 1839–57, and was Sheriff of Devon in 1825/6. A full-length portrait of Lewis William Buck by Francis Grant (1803–1878) was presented to him by the people of North Devon after he had served eighteen years as their MP, now displayed in the billiards room of Hartland Abbey, with his electioneering posters on each side.