In 1841 Thomas Greaves was simply 'Greaves', as was his son William. However, by 1861 William had become 'William Greaves Hurd'; in 1871 he was 'William Greaves' again'; but in 1881 'William Hurd Greaves'. His son John, meanwhile, was 'John Greaves' in 1881 and 1891 but 'John Graves Hurd' in 1901 and 'John Greaves Hurd' in 1911. In 1920 his son Frederick was 'Greaves-Hurd' with a hyphen but thereafter 'Greaves' vanished altogether and the family name became simply 'Hurd'. Can anybody suggest what was going on? I wondered if 'Hurd' could be the surname of a spouse -- but it isn't.