This seems to have been named after a Jacob’s Well sign, which seems to have been a familiar one in the 17th and 18th centuries.
Jacob’s Well Passage ran south out of the road called Barbican, at No. 20, to Paul’s Alley, crossing the Metropolitan Railway lines.
Its first mention as such is on the Horwood map of 1799. On Rocque’s 1746 map, it is called ’Black Horse Alley’ and on the 1677 map: ’Play House Yard’.
It fell victim to the 1963 realignment of the Metropolitan Line tracks.
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