 The Grenvilles looked for ways to maximise profits from their remaining farmland around Wotton, and to seek opportunities in heavy industry and engineering.Richard Plantagenet Campbell Temple-Nugent-Brydges-Chandos-Grenville (titled Marquess of Chandos following the death of his grandfather Richard Temple-Nugent-Brydges-Chandos-Grenville, 1st Duke of Buckingham and Chandos in 1839) was appointed chairman of the London and North Western Railway (LNWR) on 27 May 1857.After the death of his father on 29 July 1861 he became 3rd Duke of Buckingham and Chandos, and resigned from chairmanship of the LNWR, returning to Wotton House to manage the family's estates.