Gust Hagberg

Gust Hagberg (born c.1873) was a Swedish Immigrant to the Arrowhead Region of Minnesota during the late 19th century. Hagberg lived along the eastern end of the Duluth & Northern Minnesota Railway (Alger-Smith Line), where it passed northwest of Little Cascade Lake. He was known by the name Jockmock, derived from the name of his hometown of Jokkmokk in Norrbotten, Sweden . He lived there until at least 1940.

Hagberg was the namesake of several lakes or water features in Cook County, Minnesota: Gust Lake, the source of the Poplar River, Jock Mock Lake, which lies nearby but is tributary to Cascade River and Jock Mock Bay on Lake Brule.