Ireland: Heads of Administration: 1922 The administrations for governing Southern Ireland were set up pursuant to the Treaty of 1921 and existed as a dual system of government along with the authorities of Dáil Éireann to 9 Sep 1922 when the Provisional Government became responsible to the Dáil. Cathaoirleach an Rialtais Shealadaigh na hÉireann = Chairman of the Provisional Government of Ireland 16 Jan 1922 - 22 Aug 1922 Mícheál Ó Coileáin = Michael Collins Gniómh-Chathaoirleach an Rialtais Shealadaigh na hÉireann = Acting Chairman of the Provisional Government of Ireland 22 Aug 1922 - 25 Aug 1922 Liam T. Mac Cosgair = William T. Cosgrave [1] Cathaoirleach an Rialtais Shealadaigh na hÉireann = Chairman of the Provisional Government of Ireland 25 Aug 1922 - 6 Dec 1922 Liam T. Mac Cosgair = William T. Cosgrave (x) [1] In office from 12 Jul 1922 (originally acting for absent Mícheál Ó Coileáin = Michael Collins, 12 Jul 1922 - 22 Aug 1922). Last updated on: 23 May 2010 20:00:00
