He became a member of the Irish Volunteers and took part in the 1916 Easter Rising in Dublin. After it was broken up, he was interned by the British government in Wales, Great Britain. During the Irish War of Independence from 1919 to 1921, Oscar Traynor was the commandant of the Dublin Brigade of the Irish Republican Army (IRA) .
In 1925 he was elected for the Sinn Féin in the Dáil Éireann , the lower house of the Irish Parliament, but did not take his mandate there according to the policy of his party. This only changed in 1932, when Traynor was elected to the Dáil Éireann for the Fianna Fáil . From 1936 to 1939 he was Minister for Posts and Telegraphs ; he served in later governments between 1939 and 1948 and from 1951 to 1954 as Minister of Defense. In 1948 he became President of the Football Association of Ireland . From 1957 to 1961 he was Minister of Justice.
|ALTERNATIVE NAMES||Mac Thréinfhir, Oscar|
|BRIEF DESCRIPTION||Irish politician|
|DATE OF BIRTH||March 21, 1886|
|PLACE OF BIRTH||Dublin|
|DATE OF DEATH||December 15, 1963|
|Place of death||Dublin|