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
Maria Fein "Mutter Courage und ihre Kinder". In America Fein played Caroline of Brunswick to the Prince Regent of Walter Slezak in Norman Ginsbury’s "The First Gentleman", but had left over creative differences by the time the show made its Broadway debut on 25 April 1957. The following year she was engaged to play Miriam in Christopher Fry's "The First Born", but was replaced by Mildred Natwick a month before its 30 April debut on Broadway. Fein remained in the United States for several years giving one-woman shows called "An Evening of European Theatre" in which she performed scenes taken from plays