He died on 30 May 1840 in his eightieth year, and was buried in Old St. Pancras churchyard, London.
In 1790, Denne communicated to the Society of Antiquaries, as an appendix to his own paper on "Stone Seats in the Chancels of Churches", some observations by Clarke on the same subject.
Three years later, Clarke returned the compliment by addressing to Denne his "Observations on Episcopal Chairs and Stone Seats; as also on Piscinas and other appendages to Altars still remaining in Chancels; with a Description of Chalk Church, in the Diocese of Rochester", a paper, with four plates from drawings by the author, printed in Archæologia, xi.
[1] Other papers of his appeared in John Britton's Architectural Antiquities (vols.
He also revised and prefaced a work left by his near relative, William Oram, entitled "Precepts and Observations on the Art of Colouring in Landscape Painting" (1810).