John Grierson (26 April 1898 – 19 February 1972) was a pioneering Scottish documentary maker, often considered the father of British and Canadian documentary film. In 1926, Grierson coined the term "documentary" in a review of Robert J. Flaherty's Moana.
Grierson was born in the old schoolhouse in Deanston, near Doune, Scotland, to schoolmaster Robert Morrison Grierson from Boddam, near Peterhead, and Jane Anthony, a teacher from Ayrshire. His mother, a suffragette and ardent Labour Party activist, often took the chair at Tom Johnston's election meetings.
The family moved to Cambusbarron, Stirling, in 1900, when the children were still young, after Grierson's father was appointed headmaster of Cambusbarron school. When the family moved, John had three elder sisters, Agnes, Janet, and Margaret, and a younger brother, Anthony. John and Anthony were enrolled at Cambusbarron school in November 1903. His sister Margaret died in 1906; however, the family continued to grow as John gained three younger sisters, Dorothy, Ruby, and finally Marion in 1907.
Both parents steeped their son in liberal politics, humanistic ideals, and Calvinist moral and religious philosophies, particularly that education was essential to individual freedom and that hard and meaningful work was the way to prove oneself worthy in the sight of God. John was enrolled in the High School at Stirling in September 1908, and he played football and rugby for the school.
In July 1915, Grierson left school with an overall subject mark of 82%; John had sat the bursary examination at Gilmorehill the month before, as his parents wanted him to follow his elder sisters, Janet and Agnes, in going to the University of Glasgow. The results for the bursary examination were not posted until October 1915; Grierson applied to work at the munitions at Alexandria; the munitions building had been the original home of the Argyll Motor Company which had earlier in the twentieth century built the first complete motor car in Scotland.