My great great grandfather John Cadagan and his brother Michael left Cork between 1835 and 1850 and settled at Keele in North Staffordshire, England. In July 1850, John married Hannah Bloor from Keele and in October 1850 Michael married Ellen Scully from Roscommon in Ireland. In the 1881 English census, John's place of birth is given as 'Cork Castle' and Michael's is just 'Cork'. On both their marriage certificates Cornelius Cadagan is given as their father. The surname is variously spelt as Caddigan / Cadagan / Cadogan.
I would be interested in any information on John and Michael's origins as the above is all I have. Also, if anyone else is descended from John, Michael or any other siblings.