Orrock Township was settled in 1856 and organized in 1875, after bering previously a part of Big lake, was named in honor of Robert Orrock, its earliest settler. He was born in Scotland, July 15, 1805, came to America in 1831, settled here in 1856 as a farmer and died in his home, January 4, 1885. The village in section 7 had a post office, 1877-1906, a sawmill, and a station of the Northern Pacific Railroad.