His son was present at the death or registered it and i have all his son's information. I found the same burial information (that you've posted) on this site a while ago. What i'm missing is proof of is his age as his death cert states he's 65 in 1899, he married in 1875 aged 34 so at death he should have been 59. On 1891 census there's a George Mullins (coal miner) lodging at 12 Elm Tree Hill, Intake Road age 46 but if that's him he would be about 54 when he died in 1899.

I've looked everywhere for his birth but can't find him, nor can i find him on census records. There is another George Mullins b1841/42 at sheffield but he's a glass grinder and died in 1882.