Redgrave cum Botesdale birth lookup please

[Dissman]

I am trying to determine the birth/baptism details of a Martha JERMYN born, it would seem, in Redgrave cum Botesdale. She married William NEWLAND, in Redgrave, in 1789. FamilySearch and NBI both show the burial of a Martha JERMYN, in Redgrave, in 1844. NBI gives the age, at burial, of 76 years which gives a birth year of 1768 whereas FamilySearch gives the baptism year of 1765 for a Martha GERMAN, in Redgrave. Could there be a typo somewhere  ?

Any help here would be greatly appreciated.

Dissman