Clan-na-Gael, McGarrity, J., Montague, H., & Dillon, L. (1920). Circular letter from Joseph McGarrity, Hugh Montague and Luke Dillon to all members of Clan-na-Gael describing events leading up to a split within the organisation over the refusal of John Devoy and his supporters to apologise for newspaper articles slandering Éamon De Valera and the Irish Republican Army.

Clan-na-Gael, et al. Circular Letter from Joseph McGarrity, Hugh Montague and Luke Dillon to All Members of Clan-na-Gael Describing Events Leading Up to a Split Within the Organisation over the Refusal of John Devoy and His Supporters to Apologise for Newspaper Articles Slandering Éamon De Valera and the Irish Republican Army. 1920.