Man who named Grand Forks later established North Dakota's first telegraph line "Did You Know That" columnist Curt Eriksmoen explains how Sanford Cady made a lasting impact on Dakota Territory. Written By: Curt Eriksmoen | × Sanford Cady's log shack was eventually moved to the Grand Forks County Historical Society's grounds in Grand Forks, N.D. Photo courtesy of Visit Greater Grand Forks / Special to The Forum In 1869, when Sanford Cady “built a log shack” in the wilderness, overlooking the Red River in Dakota Territory, little did he realize that 20 years later, the shack would be located in the heart of a city of 5,000 people.