Military Society of Ireland, O'Donoghue, F., & Hayes-McCoy, G. A. (1950). Letter from Gerard Anthony Hayes-McCoy, 32, Whitebeam Road, Clonskea, Dublin, to Florence O'Donoghue, regarding the Bureau of Military History, informing him that Dan Bryan has resigned from it, and discussing Ned Daly's engraved button, and Miss Pearse and Patrick H. Pearse's "regulation buttons".

Military Society of Ireland, et al. Letter from Gerard Anthony Hayes-McCoy, 32, Whitebeam Road, Clonskea, Dublin, to Florence O'Donoghue, Regarding the Bureau of Military History, Informing Him That Dan Bryan Has Resigned from It, and Discussing Ned Daly's Engraved Button, and Miss Pearse and Patrick H. Pearse's "Regulation Buttons". 1950.