Complex sentence: In 1927, the company moved to the Ames Mill in Northfield, Minnesota, and 9 years later, moved its corporate headquarters to Minneapolis, Minnesota, while keeping its production in Northfield.
Split into simpler sentences: In 1927, the company moved to the Ames Mill in Northfield, Minnesota. In 1936, the company moved its corporate headquarters to Minneapolis, Minnesota, while keeping its production in Northfield.