Sir Dunbar Plunket Barton, 1st Baronet PC (29 October 1853 – 11 September 1937) was an Irish politician, author and judge.
He was the eldest son of the magistrate Thomas Henry Barton, a younger son of Dunbar Barton of Rochestown, County Tipperary, who was High Sheriff of Tipperary in 1810. Barton was descended from Chief Justice Charles Kendal Bushe; and from the co-founder of the celebrated wine merchants Barton and Guestier. His mother Charlotte Plunket was the third daughter of John Plunket, 3rd Baron Plunket. He attended Harrow and Corpus Christi College, Oxford. Nephew of the Anglican Archbishop of Dublin, Barton was a sincere Protestant, but exceptionally tolerant in all matters of religion: Maurice Healy recalled him quoting a saying of his father that whether one is a Protestant or a Catholic is largely a chance of birth.
Barton was called to the Irish Bar in 1880, to the English Bar in 1893, from Gray's Inn (of which he was elected Treasurer in 1922), and took silk in 1898. He served as an Irish Unionist Member of Parliament (MP) for Mid Armagh from 1891 to 1900 and was Solicitor-General for Ireland for two years (1898–1900). In January 1900 he was appointed a judge of the Queen's Bench Division of the High Court of Justice in Ireland, to which appointment he was sworn in on 2 February 1900. In 1904 he was transferred to the Chancery Division where he served until his retirement in 1918. He was created a baronet of Fethard in the County of Tipperary on 28 January 1918: since his only son predeceased him the title became extinct at his death.
He married Mary Manley in 1900 : their only son, Dunbar, died unmarried in 1929. He died in 1937, aged 83. He was a keen historian, with a particular interest in Marshal Bernadotte, and is said to have done much to popularise golf in Ireland.
Maurice Healy in his memoir The Old Munster Circuit pays warm tribute to a fine and courteous judge and "one of the kindest friends I have ever known".Timothy Healy: Memories and Anecdotes
Bernadotte, The First Phase, 1763–1799
Bernadotte and Napoleon, 1800–1810
Bernadotte, Prince and King, 1810–1844
The Amazing Career of Bernadotte, 1763 to 1844
Links Between Ireland and Shakespeare
Links Between Shakespeare and the Law
The Story of the Inns of Court