Lt.-Gen. John Lindsay, 20th Earl of Crawford was born on 4 October 1702.1 He was the son of Lt.-Gen. John Lindsay, 19th Earl of Crawford and Emilia Stuart.1 He married Lady Jane Murray, daughter of Lt.-Col. James Murray, 2nd Duke of Atholl and Jane Frederick, on 3 March 1747 at Belford, Northumberland, England.2 He died on 25 December 1749 at age 47 at Upper Brook Street, London, England, due his 1739 wound breaing out for the 29th time.2 He was buried on 18 January 1750 at Ceres, Fife, Scotland.2 He died intestate and his estate was administered on 24 April 1750.2
He succeeded to the title of 13th Lord Lindsay of the Byres [S., 1444] on 4 January 1713/14.3 He succeeded to the title of 4th Lord Parbroath [S., 1633] on 4 January 1713/14.1 He succeeded to the title of 20th Earl of Crawford [S., 1398] on 4 January 1713/14.1 He succeeded to the title of 4th Earl of Lindsay [S., 1633] on 4 January 1713/14.1 He was educated at University of Glasgow, Glasgow, Lanarkshire, Scotland.1 He was educated at Vaudeuil Military Academy, Paris, France.1 He held the office of Representative Peer [Scotland] between January 1732 and 1749.1 He was invested as a Fellow, Royal Society (F.R.S.) on 15 June 1732.1 He held the office of Gentleman of the Bedchamber to the Prince of WAles in 1733.1 He gained the rank of Captain in 1734 in the service of the Scots Guards.1 He held the office of Grandmaster of the Freemasons [Scotalnd] from 1734 to 1735.1 He fought in the Battle of Claussen on 17 October 1735, with the Imperial Army.1 He was Adjutant-General between 1739 and 1743.1 He was Colonel of the 43rd Foot ('the Black Watch') from 1739 to 1740.1 He fought in the Battle of Krotzka on 22 July 1739, where his horse was killed and he was desparately wounded.1 He was Colonel of the 2nd Troop of Horse, Grenadier Guards between 1740 and 1743.1 He was Colonel of the 4th Troop of Horse, Grenadier Guards ('Scottish Horse Guards') between 1743 and 1746.1 He was invested as a Knight Banneret on 16 June 1743.2 He fought in the Battle of Dettingen on 16 June 1743.2 He gained the rank of Brigadier-General in 1744.1 He fought in the Jacobite Uprising in 1745.2 He gained the rank of Major-General in 1745.1 He fought in the Battle of Fontenoy on 30 April 1745, where he conducted the retreat in excellent order.2 He was Colonel of the 25th Foot from 1746 to 1747.1 He fought in the Battle of Roucoux on 11 October 1746, where the Allies were defeated.2 He gained the rank of Lieutenant-General in 1747.2 He was Colonel of the 2nd Dragoons ('Scots Greys') between 1747 and 1749.1
