Hi Sinann,
My great-grandfather James, who was married 3 times, was living with his family in College Square , Camlough in 1901
http://www.census.nationalarchives.ie/pages/1901/Armagh/Camlough/College_Square/1036306/ But in the 1911 census, he and his family were living at 37 Auburn Street, Belfast.
http://www.census.nationalarchives.ie/pages/1911/Antrim/Cromac/Auburn_Street/158330/ James's dob would have been in 1848 or 1849.
In 1901, James's brother Andrew and his family were living at 54 Palestine Street, Belfast
http://www.census.nationalarchives.ie/pages/1901/Antrim/Cromac/Palestine_Street/970620/ but by 1911 they had moved to 152 Agincourt Avenue, Belfast
http://www.census.nationalarchives.ie/pages/1911/Antrim/Cromac/Agincourt_Avenue/158217/ Strangely enough Andrew's age is given as 41 in the 1901 census giving him a birth year of 1860, but in the 1911 census, his age is given as 55 making the birth year 1856. Definitely the same person though.
I don't know much about the third brother William, but I'm pretty sure this is him and his family living at 19 Auburn Street, Belfast in 1911. His year of birth would therefore been around 1855. I do know, according to old Belfast street directories that he was living at 32 Virginia Street, Belfast between 1918 and 1932.
