Looking for any information on my 2 x g grandfather from Ireland who moved to Derbyshire .John Murphy b 24 May 1819 in Dublin, Ireland, was apprenticed to Mr John Vallance of Derbyshire, at the suggestion of Dowager Marchioness of Ormonde, a family friend and a woman whose patronage caused John to move to England to learn his trade. I have found Johns' obituary listing his father as a soldier and detailing young Johns' apprenticeship to the trade, where he became a marble mason with his own business in Madron / Penzance, Cornwall, after being the foreman of the Penzance Serpentine Co. in 1850s. He then had his own business and lived in Market Jew St, Penzance. I am interested in his life in Cornwall, he married Elizabeth Bryan, daughter of Benjamin Bryan and Mary Bown, (the family had some of the show caverns, Coalpit Rake/Devonshire Cavern,) in Matlock Bath in 1841 in Matlock Bath and had 11 children. They moved to Penzance in 1850, I am also keen to know more about his family, he had 7 brothers and one sister who eventually came to England also, from Ireland. John was also an inventor who mastered a method to arrest the decay of stone, he and one other rival were selected eventually to conduct further trials about this process, but John died before he found out the results of his discovery. Any information on this family would be most appreciated.