Margaret Pearse defeated at the 1922 general election. She supported those who opposed the Treaty during the Irish Civil War and continued to be a member of Sinn Féin until 1926. In 1926 she left the party conference with Éamon de Valera and became a founder member of Fianna Fáil. She never stood for election again. Her daughter Margaret Mary Pearse also joined Fianna Fáil, and served as a TD from 1933 to 1937 and later served in Seanad Éireann as a Senator from 1938 until her death in 1968. At the launch of "The Irish Press" newspaper Margaret was asked to
Fianna Éireann until his return in 1933 to Ireland. Fianna Éireann survived the Civil war period intact, they had sided with the Republic. The organisation was decimated then, and further disintegration occurred in 1926 when Fianna Fáil was founded. Markievicz was a founder member of that party but she died in 1927. In 1930 Fianna got the use of the Hardwicke Hall in Dublin as a headquarters as George Plunkett was nominated by the IRA as Chief Scout. This was a nominal position and the organisation was run by the HQ staff. At this time, Fianna expanded in proportion to the rest