Michael `` Mick '' Collins ( 16 October 1890 â `` 22 August 1922 ) was an Irish revolutionary leader . He was a Minister for Finance and Teachta DÃ la ( TD member of parliament ) for Cork South in the First DÃ il of 1919 . Michael `` Mick '' Collins ( 16 October 1890 â `` 22 August 1922 ) was an Irish revolutionary leader , Minister for Finance and Teachta DÃ la ( TD ) for Cork South in the First DÃ il of 1919 , Director of Intelligence for the IRA , and member of the Irish delegation during the Anglo-Irish Treaty negotiations .