Death of George Fage (1852)?

I have a death certificate for George Fage, ordered in April 2007 but am not sure if it is for my 4xgreat-grandfather or not. George appears in the 1851 census with his wife Lucy and their chidren. Aged 50 he is recorded as an Agricultural Labourer.  By 1861, Lucy is shown as a widow, still living in Lower Caldecote with her children. The FFHS has a national burial index entry for the burial of a George Fage, aged 'c.60' on 18 October 1852 in Northill parish church.  I think George was born around 1800, so he would have been 51 if he died in 1852.  There is a christening record in the IGI for a George Fage in 1799 in Northill, son of James Fage and Elizabeth (nee Blain).

The death certificate I have is for a George Fage, aged 56 years, who died on 15 October 1852 in the Union Workhouse, Biggleswade. He was a labourer and died of Phithisis. His death was registered in Biggleswade by James Hays, who was present at the death in the workhouse. Could George have been in the workhouse, perhaps unable to work because of illness? Lucy, his widow, is shown as a Pauper on the 1861 census, although she is living in the village with her children, some of whom are in work.  There is a James Hayes recorded aged 80, a Labourer, in the Biggleswade Union Workhouse in the 1851 census. 

I need to search a little more to see if there are any other George Fage deaths between 1851 and 1861 before I can definitely map this certificate to 'my' George ... but it's a possibility.