Salzman, L.F. red. (1951): «Hunningham», i A History of the County of Warwick: Vol. 6, Knightlow Hundred, London, s. 117-120. British History Online
davidsantiuste.com
Santiuste, David (2017): «The Siege of Caerlaverock Castle», tilpasset fra forfatterens bok The Hammer of the Scots: Edward I and the Scottish Wars of Independence, 2015