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Early life

Éamon de Valera was born on 14 October 1882 in New York City, the son of Catherine Coll, who was originally from Bruree, County Limerick, and Juan Vivion de Valera, described on the birth certificate as a Spanish artist born in 1853. Some researchers have placed his father's place of birth in Cuba, while others have suggested other locations; according to Antonio Rivero Taravillo, he was born in Seville, while Ronan Fanning has him born in the Basque Country.

He was born at the Nursery and Child's Hospital, Lexington Avenue, a home for destitute orphans and abandoned children. His parents were reportedly married on 18 September 1881 at St Patrick's Church in Jersey City, New Jersey, but archivists have not located any marriage certificate or any birth, baptismal, or death certificate information for anyone called Juan Vivion de Valera (nor for "de Valeros", an alternative spelling). On de Valera's original birth certificate, his name is given as George de Valero and his father is listed as Vivion de Valero. Although he was known as Edward de Valera before 1901, a fresh birth certificate was issued in 1910, in which his first name was officially changed to Edward and his father's surname given as "de Valera". As a child, he was known as "Eddie" or "Eddy".

According to Coll, Juan Vivion died in 1885 leaving Coll and her child in poor circumstances. Éamon was taken to Ireland by his uncle Ned at the age of two. When his mother remarried in the mid-1880s, he was not brought back to live with her, but was reared by his grandmother, Elizabeth Coll, her son Patrick and her daughter Hannie, in Bruree, County Limerick. He was educated locally at Bruree National School, County Limerick and C.B.S. Charleville, County Cork. Aged sixteen, he won a scholarship. He was not successful in enrolling at two colleges in Limerick, but was accepted at Blackrock College, Dublin, at the instigation of his local curate. Blackrock College has since named one of their six student houses after him.

He played rugby at Blackrock and Rockwell College, then for Munster around 1905. He remained a lifelong devotee of rugby, attending international matches even towards the end of his life when he was nearly blind.

At the end of his first year at Blackrock College, he was student of the year. He also won further scholarships and exhibitions and in 1903 was appointed teacher of mathematics at Rockwell College, County Tipperary. It was here that de Valera was first given the nickname "Dev" by a teaching colleague, Tom O'Donnell. In 1904, he graduated in mathematics from the Royal University of Ireland. He then studied for a year at Trinity College Dublin but, owing to the necessity of earning a living, did not proceed further and returned to teaching, this time at Belvedere College. In 1906, he secured a post as a teacher of mathematics at Carysfort Teachers' Training College for women in Blackrock, Dublin. His applications for professorships in colleges of the National University of Ireland were unsuccessful, but he obtained a part-time appointment at St Patrick's College, Maynooth and also taught mathematics at various Dublin schools, including Castleknock College (1910–1911; under the name Edward de Valera) and Belvedere College.

There were occasions when de Valera seriously contemplated the religious life like his half-brother, Fr. Thomas Wheelwright, but ultimately he did not pursue this vocation. As late as 1906, when he was 24 years old, he approached the President of Clonliffe Seminary in Dublin for advice on his vocation. De Valera was throughout his life portrayed as a deeply religious man, and in death asked to be buried in a religious habit. His biographer, Tim Pat Coogan, speculated that questions surrounding de Valera's legitimacy may have been a deciding factor in his not entering religious life. Being illegitimate would have ordinarily been a bar to receiving priestly orders as a secular priest, but not to becoming a priest or religious in some religious orders.

As a young Gaeilgeoir (Irish speaker), de Valera became an activist for the Irish language. In 1908, he joined the Árdchraobh of Conradh na Gaeilge (the Gaelic League), where he met Sinéad Flanagan, a teacher by profession and four years his senior. They were married on 8 January 1910 at St Paul's Church, Arran Quay, Dublin.

The couple had five sons: Vivion (1910–1982), Éamon (1913–1986), Brian (1915–1936), Rúaidhrí (1916–1978), and Terence (Terry; 1922–2007); and two daughters: Máirín (1912–1984) and Emer (1918–2012). Brian de Valera predeceased his parents.