William Morgan Jellett was an Irish Unionist Member of Parliament

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,...

 (MP) in the Parliament of the United Kingdom

Parliament of the United Kingdom

The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative body in the United Kingdom, British Crown dependencies and British overseas territories, located in London...

. The Irish Unionists were the Irish wing of the Conservative Party

Conservative Party (UK)

The Conservative Party, formally the Conservative and Unionist Party, is a centre-right political party in the United Kingdom that adheres to the philosophies of conservatism and British unionism. It is the largest political party in the UK, and is currently the largest single party in the House...

. He was the son of Rev. John Hewitt Jellett

John Hewitt Jellett

John Hewitt Jellett was a college head, provost of Trinity College, Dublin. He was also a priest in the Church of Ireland during the Victorian Era....

, Provost of Trinity College, Dublin and was born in Dublin.

He attended Trinity College, Dublin

Trinity College, Dublin

Trinity College, Dublin , formally known as the College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin, was founded in 1592 by letters patent from Queen Elizabeth I as the "mother of a university", Extracts from Letters Patent of Elizabeth I, 1592: "...we...found and...

, before being called to the Irish Bar in 1882. He became a Queen's Counsel

Queen's Counsel

Queen's Counsel , known as King's Counsel during the reign of a male sovereign, are lawyers appointed by letters patent to be one of Her [or His] Majesty's Counsel learned in the law...

 (QC) in 1899. He was private secretary to Lord Ashbourne

Edward Gibson, 1st Baron Ashbourne

Edward Gibson, 1st Baron Ashbourne PC, QC was an Irish lawyer and Lord Chancellor of Ireland.-Background and education:...

, the Lord Chancellor of Ireland

Lord Chancellor of Ireland

The office of Lord Chancellor of Ireland was the highest judicial office in Ireland until the establishment of the Irish Free State in 1922. From 1721 to 1801 it was also the highest political office of the Irish Parliament.-13th century:...

 1888-1893 and 1895.

Jellett was MP for Dublin University 28 July 1919-1922, having been defeated in the constituency at the 1918 general election. He was the last United Kingdom MP to have been elected in the twenty six counties which became the Irish Free State

Irish Free State

The Irish Free State was the state established as a Dominion on 6 December 1922 under the Anglo-Irish Treaty, signed by the British government and Irish representatives exactly twelve months beforehand...

.

Jellett left the House of Commons

British House of Commons

The House of Commons is the lower house of the Parliament of the United Kingdom, which also comprises the Sovereign and the House of Lords . Both Commons and Lords meet in the Palace of Westminster. The Commons is a democratically elected body, consisting of 650 members , who are known as Members...

in 1922 when his constituency ceased to be represented in the United Kingdom Parliament.