Curtis, E. Irish historical documents, 1172-1922, 1943.
Independent WWW site, Sept. 19, 2011 (Professor R.B. McDowell; b. Robert Brendan McDowell, Sept. 14, 1913, Belfast; d. Aug. 28, 2011, Celbridge, Co. Kildare; colourful and clubbable historian of Ireland renowned for the high entertainment of his lectures)