Michael Popkin (2001). "Brave Deeds and Tragedies". OXFORD INSCRIPTIONS – Inscribed Stones and Plaques in Oxford. Archived from the original on 24 April 2002. Retrieved 27 November 2009.
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Michael Popkin (2001). "Brave Deeds and Tragedies". OXFORD INSCRIPTIONS – Inscribed Stones and Plaques in Oxford. Archived from the original on 24 April 2002. Retrieved 27 November 2009.