Czira, S. G., O'Donoghue, F., Ó Briain, L., Brugha, C., & Whelan, P. (1935). Correspondence between Florence O'Donoghue and John Brennan [Mrs. Sidney Czira], Caitlín Brugha, Liam Ó Briain, with others, regarding O'Donoghue’s lecture ‘Plans for the 1916 Rising’ and arrangements to publish it in 'University Review'.

Czira, Sidney Gifford, et al. Correspondence Between Florence O'Donoghue and John Brennan [Mrs. Sidney Czira], Caitlín Brugha, Liam Ó Briain, with Others, Regarding O'Donoghue’s Lecture ‘Plans for the 1916 Rising’ and Arrangements to Publish It in 'University Review'. 1935.