I now discover that my Grandfather - George Fredrick's father was in fact Fredrick William, and not George as previously thought. In 1881, F.W. Addy was living/registered with his married sister Emily Newman's family, along with his other sister, Florence and father Edward H. Addy and mother Mary Ann Addy. This was in Nether Hallam, Yorkshire. Edward H. Addy was born 1833 in Sheffield and is listed as a "Traveller" in the 1881 Census. Quite what kind of traveller is unclear. I now search other Addy's born in Sheffield around 1833 +/- 10years with the hope of finding siblings of Edward or earlier generations of this Addy line.