Letter from Donal J. O'Donoghue to Florence O'Donoghue relating to the publication and legal status of Donal's letter regarding Séamas Ó Maoileóin's book 'B'fhiú an braon fola' ['The drop of blood was worth it'], - O’Donoghue, Donal J., 1894-1971 (1959)