[3] A conduit has supplied water from Brandon Hill since 1374, and the course of the pipe is marked in places by small plaques set into the pavements.
[4] Among the monuments in the church are those of Walter Frampton (died 1357), three times Mayor of Bristol and a great benefactor of the church, and a brass commemorating Thomas Rowley (died c. 1478), whose name was used by the 18th-century teenage poet Thomas Chatterton as a pseudonym under which to write his forgeries of medieval poetry.
The archive also includes records of the incumbent, churchwardens, overseer of the Poor, parochial church council, charities, schools and vestry plus deeds, plans and photographs.
It is open daily for free tours and interactive visitor displays telling the story of medieval Bristol.
St John on the Wall hosts a small programme of free family events, gigs, exhibitions and concerts.