Perhaps they moved?
Susannah Bingham, born circa 1779 Hatfield, according the 1851 and 1861 census, living in Cheshunt
She died a spinster, 9 July 1863.
Probate for her - administration granted to nephew John Bingham of Chigwell, Gentleman, one of the next of kin.
He looks likely to be the John baptized Hatfield Broad Oak in 1804.
Pity it wasn't a will!