You say you are looking for Robert McCracken’s death but then give the details. Did you mean something else? Robert’s death certificate is on the GRONI website and you can view it for £2.50.
Here’s a link to Robert’s marriage certificate. It confirms his father was Robert, a labourer:
He was living at Ballymagaraghan in 1904. This looks to be him in the 1901 census, though the age doesn’t quite match that on his death certificate. However the location does:
http://www.census.nationalarchives.ie/pages/1901/Down/Moira/Ballymagarahan/1243081/
Either of these might be Robert’s birth in 1879:
This looks to be Robert in the 1911 census:
http://www.census.nationalarchives.ie/pages/1911/Down/Moira/Ballymagaraghan/251937/
Later children in the GRONI indexes are:
Waring McCracken 27.5.1911at Carnalbanagh East
Benjamin 5.3.1913
Jane 31.7.1919
Annie 9.9.1920
There may have been more children after that but the records post 1920 are not on-line.