Síle de Valera Dublin, where she qualified as a career guidance teacher. De Valera comes from a famous political family; she is the granddaughter of Éamon de Valera, the founder of Fianna Fáil, former Taoiseach and third President of Ireland. She is a niece of the former TD Vivion de Valera and is a first cousin of Teachta Dála Éamon Ó Cuív. De Valera was first returned to Dáil Éireann in the Fianna Fáil landslide victory at the 1977 general election. She was elected for the Dublin County Mid constituency, which included the Tallaght area of County Dublin, being the youngest TD elected
Éamon de Valera to sleep and on one occasion, having forgotten the password, almost getting himself shot in the dark by his own men. According to one account, de Valera, on being forced to sleep by one subordinate who promised to sit beside him and wake him if he was needed, suddenly woke up, his eyes "wild", screaming, "Set fire to the railway! Set fire to the railway!" Later in the Ballykinlar internment Camp, one de Valera loyalist approached another internee, a medical doctor, recounted the story, and asked for a medical opinion as to de Valera's condition. He also threatened to sue