There is also a baptism of a daughter :

20 September 1835 : Blakeney

Margaret Sarah JAMES - parents: James (Seaman) & Sarah - residence: Gatcomb

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Looking at Gloucestershirebmd: Possible Mother's surname SHAW

JAMES

Thomas 1837 (Mother's maiden name SHAW)
John: 1842 (Mother's maiden name SHAW)

???
Family Search has

James JAMES marrying Sarah SHAW - 16 September 1832 Portishead, Somerset