October 2000 The Tower House of the O’Donoghue of the Glen at Killaha
April 2001 The O’Donoghues of Coomacullen townland in Glenflesk, County Kerry
January 2002 The O’Donoghues of Coomacullen – a sequel; or the Johnnies found
October 2003 Irish naming practices and the O'Donoghues
From October 2003 Quarterly Y-DNA Project report
July 2004 O’Donoghues in 17th and 18th century poetry

Specific research interests