O'Brien, A. P., Milroy, S., & McGrath, S. (1919). Correspondence between Art O'Brien and Seán Milroy, Henry O'Hanrahan, D. O'Connor and Michael O'Leary with subjects including the organisation of Sinn Féin in Enlgand and the arrest of Seán Milroy. Also includes a letter from Catalan nationalists requesting information from the Dáil Bureau.

O'Brien, Art Patrick, et al. Correspondence Between Art O'Brien and Seán Milroy, Henry O'Hanrahan, D. O'Connor and Michael O'Leary with Subjects Including the Organisation of Sinn Féin in Enlgand and the Arrest of Seán Milroy. Also Includes a Letter from Catalan Nationalists Requesting Information from the Dáil Bureau. 1919.