Hi all.
I am looking for the father of William Walsh, who was born in Wigan, Lancs.  On his census records between 1891-1921, his date of birth varies between 1853, 1855, 1856 etc.  On GRO there are possibilities for each of these dates.  
The family are Roman Catholic, and I have been unable to access either baptism records or marriage records.
William married Ann Latchford in Wigan Church/Registry Office in 1890.  They had children, Mary Ellen, Thomas and William.  Ann had a son, James, before she was married.
As the 1921 census is the most recent and, perhaps, more likely to be correct, I have downloaded the b/c for 1853, which states that the father is John and the mother is Mary, nee Hilton.  
Apart from buying the marriage certificate, how else can I confirm his father?  R.