sentences:  Three generations of the Wallace family, Henry Cantwell Wallace, Henry A. Wallace, and Henry Browne Wallace, owned and operated "Wallaces' Farmer", which was then a newspaper.The Farm Progress affiliate Prairie Farmer purchased radio station WLS from Sears in 1928 and operated it primarily as a service to farmers.The station moved to the Prairie Farmer Building on West Washington Street in Chicago, Illinois where it remained for 32 years.