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Sir James Dundas Harford KBE CMG (7 January 1899 – 26 November 1993) was a British diplomat who served as Governor of Saint Helena from 1954 to 1958.

A direct descendant of John Scandrett Harford of Blaise Castle, he was educated at Repton School and Balliol College, Oxford. Between school and university he enlisted as a second lieutenant in 2nd Battalion Essex Regiment and saw action in France between 1917 and 1918. After a period as a schoolmaster at Eton College from 1922 to 1926, Harford joined the Colonial Administration Service and was posted to Nigeria (1926–1934).

He was subsequently appointed:

• Administrator of Antigua and Federal Secretary of the Leeward Islands (1936–1940);
• Administrator of Saint Kitts and Nevis (1940–1946);
• Acting Governor of the Leeward Islands (various periods between 1937 and 1946);
• Companion of the Order of St Michael and St George (1943);
• To serve in the Colonial Office (1946–1947);
• Colonial Secretary of Mauritius (1948–1953);
• Acting Governor of Mauritius (1948 and 1950);
• Governor and Commander-in-Chief of Saint Helena (1954–1958);
• Knight Commander of the Order of the British Empire (1956).

Harford Middle School^[1] in Saint Helena is named in his honour.

He was married twice:

1. (14 March 1932) to Countess Thelma Alberta Louisa Evelyne Metaxà (died 22 October 1934), sister of 9th Count Metaxà, and only daughter of Count Andrea Francis Albert Cochrane Metaxà RNR; 1 son.
2. (20 February 1937) to Lilias Madeline (died 9 December 2006), eldest daughter of Major Archibald Campbell AEC; 2 daughters.

• "Metaxà". Burke's Genealogical and Heraldic History of the Peerage, Baronetage and Knightage: Privy Council and Order of Precedence (96th (Coronation honours) ed.). London: Shaw Publishing in conjunction with Burke's Peerage. 1938. pp. 2689–2690.

• Peter Townend, ed. (1965). "Harford of Horton". Burke's Genealogical and Heraldic History of the Landed Gentry (18th ed.). London: Burke's Peerage. Vol. I, pp. 367–370.

• Peter Townend, ed. (1972). "Campbell, formerly of Auchendarroch and Inverawe". Burke's Genealogical and Heraldic History of the Landed Gentry (18th ed.). London: Burke's Peerage. Vol. III, pp. 140–141.

• John Jones and Catherine Willbery (Edd.), ed. (1993). The Balliol College Register (1940–1990) (6th ed.). printed for private circulation.

• Harford Middle School