Thomas N. Byrne was an Irish

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 independent

Independent (politician)

In politics, an independent or non-party politician is an individual not affiliated to any political party. Independents may hold a centrist viewpoint between those of major political parties, a viewpoint more extreme than any major party, or they may have a viewpoint based on issues that they do...

 politician. He was first elected to Dáil Éireann

Dáil Éireann

Dáil Éireann is the lower house, but principal chamber, of the Oireachtas , which also includes the President of Ireland and Seanad Éireann . It is directly elected at least once in every five years under the system of proportional representation by means of the single transferable vote...

 as a Teachta Dála

Teachta Dála

A Teachta Dála , usually abbreviated as TD in English, is a member of Dáil Éireann, the lower house of the Oireachtas . It is the equivalent of terms such as "Member of Parliament" or "deputy" used in other states. The official translation of the term is "Deputy to the Dáil", though a more literal...

 (TD) for Dublin North West

Dublin North West (Dáil Éireann constituency)

Dublin North–West is a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas. The constituency elects 3 deputies...

 at a by-election on 12 November 1952. The by-election was caused by the death of his brother, Alfred P. Byrne

Alfred P. Byrne

Alfred Patrick Byrne was an Irish politician. A clerk by profession, he as first elected to Dáil Éireann as an independent Teachta Dála for Dublin North West at the 1937 general election. He was re-elected at the 1938 and 1943 general elections but lost his seat at the 1944 general election...

. He was re-elected at the 1954

Irish general election, 1954

The Irish general election of 1954 was held on 18 May 1954. The newly elected members of the 15th Dáil assembled at Leinster House on 2 June when the new Taoiseach and government were appointed....

 and 1957

Irish general election, 1957

The Irish general election of 1957 was held on 5 March 1957, just over three weeks after the dissolution of the Dáil on 4 February. The newly elected members of the 16th Dáil assembled at Leinster House on 20 March when the new Taoiseach and government were appointed.The general election took place...

 general elections. He lost his seat at the 1961 general election

Irish general election, 1961

The Irish general election of 1961 was held on 4 October 1961, just over three weeks after the dissolution of the Dáil on 8 September. The newly elected members of the 17th Dáil assembled at Leinster House on 11 October when the new Taoiseach and government were appointed.The general election took...

.

His father Alfred Byrne

Alfred Byrne

Alfred Byrne , also known as Alfie Byrne, was an Irish nationalist politician, who served as both an MP in the House of Commons of the United Kingdom of Great Britain and Ireland and as a Teachta Dála in Dáil Éireann. As Lord Mayor of Dublin he was known as the "shaking hand of Dublin".He was born...

 was an MP

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

, TD, Senator

Seanad Éireann

Seanad Éireann is the upper house of the Oireachtas , which also comprises the President of Ireland and Dáil Éireann . It is commonly called the Seanad or Senate and its members Senators or Seanadóirí . Unlike Dáil Éireann, it is not directly elected but consists of a mixture of members chosen by...

 and Lord Mayor of Dublin

Lord Mayor of Dublin

The Lord Mayor of Dublin is the honorific title of the Chairman of Dublin City Council which is the local government body for the city of Dublin, the capital of Ireland. The incumbent is Labour Party Councillor Andrew Montague. The office holder is elected annually by the members of the...

. Another brother Patrick Byrne

Patrick Byrne (Irish politician)

Patrick Byrne was an Irish politician. An accountant by profession, he was first elected to Dáil Éireann as an independent Teachta Dála for Dublin North East at a by-election on 30 April 1956. The by-election was caused by the death of his father, Alfred Byrne. In 1957 he joined Fine Gael and was...

was also a TD.