Somewhere there a mistake, perhaps the records are wrong, or perhaps even me but it does state 62 years d of b=1849
Is it possible you could manage to find out where the admissions register is , that might pin it down, pity we can't find him on 1901
Is there a family burial plot where you could find where this man is buried, it will then clarify if he is your man or not, 10 years difference is quite a lot, a year or two is acceptable but 10 years, who knows?
Is it to much of a gamble to purchase the death cert 1913?
Louisa Maud