Original: A founder of Fianna Fáil In 1926 when de Valera left Sinn Féin to found his own republican party, Fianna Fáil, O'Kelly followed him, becoming one of the party's founding members.
Simplified: A founder of Fianna Fáil In 1926 when de Valera left Sinn Féin to found his own republican party, Fianna Fáil, Ó Ceallaigh followed him, becoming one of the party's founding members.