I posted in here about Peter and Sarah Maybury (grandparents of Lizzie). As I mentioned that he died just four years after their marriage. I received his death certificate and he indeed was 64 years old and died on December 14, 1839.
Remember, you can click on the picture to make it larger. He was a pastry cook and seems to have died of old age, as cause of death is listed as Decay of Nature. Sarah (his wife) reported his death but she must not have been able to write as the registrar wrote: Sarah Maybury's Mark X, present at the death.