Costello, M. J. J., & Devoy, J. (1894). Letter from M. J. Costello to John Devoy admitting that he lacks the "persistency and devotion to details" to make a true political activist but is "ready to lend a hand" for the cause.

Costello, M. J. Journalist, and John Devoy. Letter from M. J. Costello to John Devoy Admitting That He Lacks the "Persistency and Devotion to Details" to Make a True Political Activist but Is "Ready to Lend a Hand" for the Cause. 1894.