I am trying to find information about Margaret Pearson.She married Samuel Bishop Pearson about 1875 and they had a daughter Jane Edith.The family were connected to Pearsons Mineral Water factory in Sunderland.I think the marriage might have failed but Margaret is registered as still associated with the factory in the 1901 census.I would like to know her maiden name and any information about her grandson's (John Rupert Murray)connection with the factory.Also, does the title 'FortyThieves' in connection with a group of lawyers/accountants operating in Sunderland about 1900 mean anything to anyone.Many thanks Joan Murray