xAlison Chapman (ed.) and the DVPP team, “Inscription for the Apartment in Chepstow Castle Where Henry Martin, the Regicide,
Was Imprisoned Thirty Years,” Digital Victorian Periodical Poetry Project, Edition 0.98.11beta
, University of Victoria, 7th May 2025, https://dvpp.uvic.ca/cornhill_series/1898/pom_15895_inscription_for_the_apartment.html.