In 1933, he published "The O'Dwyers of Kilnamanagh: The History of an Irish Sept", a historical and genealogical treatise detailing the O'Dwyer (Ó Duibhir) noble family who had commanded the area around Thurles from the pre-Norman era until losing their castles and land during the Cromwellian confiscations of the 17th century. It was republished in the 21st century with the title "The History of the O'Dwyers".