- Born in 1709
- Deceased on October 12, 1768, at the approximate age of 58 years
Parents
- George Douglas (1662 - 1738), Earl of Morton, member of parliament for Lanark Burghs
- Frances Adderley
Family
- Married on July 31, 1755, with Bridget Heathcote, issuing
- John (1756 - 1818)
Occupations
- grand Master of the Grand Lodge of Scotland (1739 - 1740)
- grand Master of the Premier Grand Lodge of England (1741 - 1742)
- president of the Royal Society (16th) (1764 - 1768)