On 20 March 1957 the 8th Government of Ireland was officially appointed by Dáil Éireann. The new Fianna Fáil government was led by the Taoiseach Éamon de Valera, who appointed the following Parliamentary Secretaries.
Change of Taoiseach
On 23 June 1959 the 9th Government of Ireland was officially appointed by Dáil Éireann. The new Fianna Fáil government was led by the Taoiseach Seán Lemass, who appointed the following Parliamentary Secretaries.
References
Parliamentary Secretaries of the 16th Dáil Wikipedia(Text) CC BY-SA