Barry 1902, p. 99, line 31. "James FitzRichard Viscount Buttevant had five sons and five daughters by his wife, Ellen, daughter of Cormac na haoine McCarthy Reagh."
Barry 1902, p. 99, line 33. "1. Richard who was deaf and dumb, was superseded in titles and estates by his next brother, David, and died unmarried at Liscaroll, 24th April 1622 ..."
Shaw 1906, p. 73. "1567, Mar. 30. James FitzRichard (Barry), viscount Buttevant (at Limerick by Sir Henry Sidney, Lord Deputy)." Shaw, William A. (1906). The Knights of England. Vol. II. London: Sherratt & Hughes. – Knights bachelors & Index
Barry 1902, p. 16. "James FitzRichard, Viscount Buttevant, thus treacherously seized and tyrannically imprisoned in Dublin Castle, died there on 10 April 1581 ..."