The Ely bishops transcripts are missing pages, from Easter 1714 to Easter 1715, Easter 1716 to Easter 1718. If James was born between these dates... plausable.
https://www.wikitree.com/wiki/Barker-1901 has James born 27 May 1715 in Castle Camps.
He died in 1777. He was buried on June 19th, 1777 in Castle Camps, Cambridgeshire, England.1