The Greig-Duncan Folk Song Collection
The Greig-Duncan Folk Song Collection from northeast Scotland, was the work of the schoolmaster and musician, Gavin Greig (1856–1914), and the minister James Bruce Duncan (1848-1917). The project began in 1902 and was completed between then and the First World War.
Source: Wikipedia — The Greig-Duncan Folk Song Collection (CC BY-SA 4.0)