John Blair FRS, FSA (died 24 June 1782), was a British clergyman, and chronologist.
Leaving Scotland as a young man, he became usher of a school in Hedge Lane, London, in succession to Andrew Henderson, author of a well-known history of the rebellion of 1745.
[1] In 1754, he published, 'The Chronology and History of the World, from the Creation to the Year of Christ 1753, illustrated in fifty-six tables.'
The plan and scope of the work originated with Dr. Hugh Blair's scheme of chronological tables.
In 1755 he was elected a fellow of the Royal Society, and in its 'Transactions' appeared a paper by him on the 'Agitation of the Waters near Reading'[2][1] He had previously obtained orders in the church of England, and in September 1757 was appointed chaplain to Princess Augusta of Saxe-Gotha and mathematical tutor to the Prince Edward, Duke of York and Albany.