O'Brien, A. P., & Irish Volunteers. (1908). Newspaper cuttings from 'An t-Éireannach' including an item regarding the proposed formation of a London society called "The Union of the Four Provinces of Ireland", with a political cartoon from 'The Lepracaun', Art Ó Briain’s membership card for the Irish Volunteers and a letter and flyer regarding a London meeting in support of the Irish National Volunteers.

O'Brien, Art Patrick, and Irish Volunteers. Newspaper Cuttings from 'An T-Éireannach' Including an Item Regarding the Proposed Formation of a London Society Called "The Union of the Four Provinces of Ireland", with a Political Cartoon from 'The Lepracaun', Art Ó Briain’s Membership Card for the Irish Volunteers and a Letter and Flyer Regarding a London Meeting in Support of the Irish National Volunteers. 1908.