O'Brien, A. P., & Collins, M. (1921). Copies of memorandums between Art O'Brien and Michael Collins with subjects including the cases of Manchesters Irish Self-Determination League of Great Britain members, expense accounts for the Irish delegation, demands from an "O.C" for money for unemployed men in the I.R.A, and British public opinion regarding Ireland.

O'Brien, Art Patrick, and Michael Collins. Copies of Memorandums Between Art O'Brien and Michael Collins with Subjects Including the Cases of Manchesters Irish Self-Determination League of Great Britain Members, Expense Accounts for the Irish Delegation, Demands from an "O.C" for Money for Unemployed Men in the I.R.A, and British Public Opinion Regarding Ireland. 1921.