O'Brien, A. P., & Fitzgerald, E. B. (1922). Letter from Edmund B. Fitzgerald to Art O'Brien concerning the treatment of anti-Treaty prisoners in Limerick, pamphlet comparing the executions carried out under the British and Irish governments, and lists of executed anti-Treaty Republicans.

O'Brien, Art Patrick, and Edmund B. Fitzgerald. Letter from Edmund B. Fitzgerald to Art O'Brien Concerning the Treatment of Anti-Treaty Prisoners in Limerick, Pamphlet Comparing the Executions Carried Out Under the British and Irish Governments, and Lists of Executed Anti-Treaty Republicans. 1922.