John Griffith was an architect active in England, particularly in London, in the 19th century. He is described as being 'of Finsbury'.
In addition to being a Fellow of the Royal Institute of British Architects, Griffith was also Chairman of the Kensal Green Cemetery Company in London, a company in which he was very much involved and a site for which he had previously designed several neo-classical structures.
Bibliography
Colvin, Howard, A Biographical Dictionary of British Architects 1600-1840, 3rd edition (New Haven and London: Yale University Press, 1995), p. 433.