John Aloysius Costello was an Irish Fine Gael politician who served as Taoiseach from 1948 to 1951 and from 1954 to 1957, Leader of the Opposition from 1951 to 1954 and from 1957 to 1959, and Attorney General of Ireland from 1926 to 1932. He served as a Teachta Dála (TD) from 1933 to 1943 and from 1944 to 1969.
An Taoiseach John A. Costello inspects ranks of An Gárda Síochána in Glenties during the 1951 election campaign
Fine Gael is a liberal-conservative and Christian-democratic political party in Ireland. Fine Gael is currently the third-largest party in the Republic of Ireland in terms of members of Dáil Éireann and largest in terms of Irish members of the European Parliament. The party had a membership of 25,000 in 2021. Simon Harris succeeded Leo Varadkar as party leader on 24 March 2024.
W. T. Cosgrave
Eoin O'Duffy
Frank MacDermot
James Dillon