George Baillie-Hamilton, 12th Earl of Haddington KT MC TD FRSE  [ unreliable source? ] (18 September 1894 – 17 April 1986),  was a Scottish peer from 1917  to 1986.
Haddington was the son of Brigadier-General George Baillie-Hamilton, Lord Binning and Katherine Salting (d.1952).
He was educated at Eton and then at Sandhurst.  He was on the staff of Governor General of Canada  and was awarded the Military Cross during the First World War. He succeeded his grandfather in the earldom in 1917. In the Second World War he was a Wing Commander in the RAFVR. He was Lord Lieutenant of Berwickshire from 1952 to 1969. In 1957 he became the first president of the Georgian Group of Edinburgh, later the Architectural Heritage Society of Scotland.  He lived at Tyninghame House in East Lothian, where he and his wife created and replanted several formal gardens. 
His daughter, Lady Mary, was one of Queen Elizabeth II's maids of honour at the coronation in 1953.[ citation needed ]
He fought in the First World War, as a captain in the service of the 2nd Dragoons (Royal Scots Greys), where he was wounded. He went on to gain the rank of Wing Commander in the Royal Air Force Volunteer Reserve; and Major in the 19th Lothians and Border Horse Armoured Car Company Territorial Army, as well as Captain of the Royal Company of Archers.
The Earl was a Representative Peer of Scotland between 1922 and 1958. He was Deputy Lieutenant (D.L.) of East Lothian 1929–1946, Vice-Lord-Lieutenant of East Lothian 1946–1952, and Lord-Lieutenant of East Lothian 1952–1970. He also served as a Justice of the Peace (J.P.) in East Lothian and Berwickshire. He was invested as a Knight Companion of the Order of the Thistle on 6 December 1951.  He was awarded the honorary degree of Doctor of Law (LL. D.) by Glasgow University in 1957.
He married Sarah Cook, daughter of George William Cook, on 10 September 1923.
They had two children:
The 12th Earl died in 1986.
East Lothian is one of the 32 council areas of Scotland, as well as a historic county, registration county and lieutenancy area. The county was also known as Haddingtonshire.
Earl of Haddington is a title in the Peerage of Scotland. It was created in 1627 for the noted Scottish lawyer and judge Thomas Hamilton, 1st Earl of Melrose. He was Lord President of the Court of Session from 1616 to 1625. Hamilton had already been created Lord Binning in 1613 and Lord Binning and Byres, in the County of Haddington, and Earl of Melrose, in the County of Roxburgh, in 1619. These titles were also in the Peerage of Scotland. The title of the earldom derived from the fact that he was in possession of much of the lands of the former Melrose Abbey. However, Hamilton was unhappy with this title and wished to replace it with "Haddington". In 1627 he relinquished the earldom of Melrose and was instead created Earl of Haddington, with the precedence of 1619 and with limitation to his heirs male bearing the surname of Hamilton. This derived from the fact that he considered it a greater honour to take his title from a county rather than from an abbey. Hamilton was a member of the prominent Scottish family of that name and descended from John de Hamilton, younger son of Walter de Hamilton, who was granted the feudal barony of Cadzow and who is also the ancestor of the Dukes of Hamilton and Dukes of Abercorn.
Lord Elphinstone is a title in the Peerage of Scotland created by King James IV in 1510.
Thomas Hamilton, 9th Earl of Haddington, KT, PC, FRS, FRSE, known as Lord Binning from 1794 to 1828, was a Scottish Conservative statesman.
Thomas Hamilton, 1st Earl of Haddington, designated before his peerage as 'of Drumcarny, Monkland, and Binning', was a Scottish administrator, Lord Advocate, judge, and Lord Lieutenant of Haddingtonshire.
George Baillie-Hamilton-Arden, 11th Earl of Haddington,, was a Scottish landowner and representative peer.
This is a list of people who have served as Lord Lieutenant of East Lothian, or Haddingtonshire.
Thomas Hamilton, 6th Earl of Haddington KT FRCPE was a Scottish politician and nobleman.
Henry Francis Hepburne-Scott, 7th Lord Polwarth was firstly a Member of the Parliament of the United Kingdom for Roxburghshire, 1826–32, then a Representative Peer for Scotland in the House of Lords at Westminster. He was Lord Lieutenant and Sheriff Principal of Selkirkshire, and a Lord-in-Waiting to Queen Victoria.
George Baillie-Hamilton, 10th Earl of Haddington DL, known as George Baillie until 1858, was a Scottish Conservative politician.
Tyninghame House is a mansion in East Lothian, Scotland. It is located by the mouth of the River Tyne, 2⁄3-mile (1.1 km) east of Tyninghame, and 3+3⁄4 miles (6.0 km) west of Dunbar. There was a manor at Tyninghame in 1094, and it was later a property of the Lauder of The Bass family. In the 17th century, it was sold to the Earl of Haddington. The present building dates from 1829 when the 9th Earl of Haddington employed William Burn to greatly enlarge the house in the Baronial style. In 1987 the contents of the house were sold, and the house was divided into flats.
Brigadier-General George Baillie-Hamilton, Lord Binning, CB, MVO, ADC, DL was a British Army officer; he was styled "Lord Binning" as a courtesy title.
John Hamilton, 4th Earl of Haddington was a Scottish nobleman.
Charles Hamilton, 5th Earl of Haddington, was a Scottish nobleman.
William Montagu Hay, 10th Marquess of Tweeddale KT DL, known before 1878 as Lord William Hay or Lord William Montagu Hay, was a Scottish landowner, peer and politician. He was born at Yester House, near Gifford, East Lothian, and served in British India as a member of the Bengal Civil Service and later as a Liberal Member of Parliament.
Baillie-Hamilton is a surname. Notable people with the surname include:
Colonel Alexander McBean V.D., D.L., J.P., of Tyninghame, Tettenhall, Staffordshire was a leading businessman, soldier, local Conservative politician, Freemason and Churchman in the Midlands.
John George Baillie-Hamilton, 13th Earl of Haddington, was a British peer and politician of the Conservative Party. He was also a photographer and explorer of the paranormal.
The Sheriff of Haddington, or Sheriff of East Lothian, was historically the royal official responsible for enforcing law and order in Haddington, Scotland. Prior to 1748 most sheriffdoms were held on a hereditary basis. From that date, following the Jacobite uprising of 1745, the hereditary sheriffs were replaced by salaried sheriff-deputes, qualified advocates who were members of the Scottish Bar.
Helen Hope was a Scottish forester and countess of Haddington through marriage. She planted many trees in Haddingtonshire and created Binning Wood at Tyninghame.