Lord John Duke Coleridge was a Judge.
Lord Coleridge was an MP in Exeter between the years 1866 and 1873. He also worked as solicitor general, and attorney general. In 1873 he was made the Lord Chief Justice of Common Pleas. He wrote stories, edited Matthew Arnold's papers, and wrote on legal questions relating to, for instance, visection.
Lord Coleridge is mentioned in a diary entry by Lois Buchanan Cassatt who was painted by Whistler. Lois Cassatt writes that she and Agnes called on Lord Coleridge's family and they then went on to dine together at number 40 Upper Grosvenor Street, London on Thursday 9 April 1883.
New York Public Library on-line catalogue at http://catnyp.nypl.org (accessed 2005).