Thornley, David (). „Patrick Pearse and the Pearse Family”. Studies: An Irish Quarterly Review. Dublin: Irish Province of the Society of Jesus. 60 (239/240): 332–346. ISSN0039-3495. JSTOR30088734.
nli.ie
„Patrick Pearse”(PDF). The 1916 Rising: Personalities and Perspectives. National Library of Ireland. . Arhivat din original(PDF) la .
"Peace and the Gael", în Patrick H. Pearse, Political writings and speeches, Phoenix, Dublin, (1924) p. 216, National Library of Ireland(d)
Kathleen Clarke(d) says in My Fight for Ireland's Freedom that it was "towards the end of 1913" when Tom Clarke had Pearse co-opted onto the Supreme Council of the IRB.
Thornley, David (). „Patrick Pearse and the Pearse Family”. Studies: An Irish Quarterly Review. Dublin: Irish Province of the Society of Jesus. 60 (239/240): 332–346. ISSN0039-3495. JSTOR30088734.