John Gregorson collected numerous tales and traditional stories from the folklore of Scotland. Superstitions of the Highlands & Islands of Scotland was published posthumously in 1900. It collects oral stories of Scottish superstitions and folklore including tales of fairies, tutelary beings, mermaids, the water-horse, and other spirits, as well as divination, dreams & prophecies, and the Devil.

John Gregorson Campbell (1836-1891) was a minister and folklorist. He collected many stories and tales of the Scottish Highlands and islands. Campbell was born near Loch Linnhe at Kingairloch, Argyll. He was a Free Church minister of the united parishes of Tiree and Coll in Argyll. His work was published in numerous contemporary publications including the Scottish Review, Celtic Magazine, and Highland Monthly.