Allen and Nancy Olson of Cologne, Minn., announce the engagement of their daughter, Annette Cora Olson, to Ronald Rudolph Hartung.
The bride-to-be is a graduate of Waconia High School.
Her fiance, son of the late Harry and the late Gertrude Hartung of Cologne, is currently employed at GMH Asphalt.
The couple will marry in September 2012 at Bearpath in Eden Prairie, Minn. The couple plan to make their home in Carver, Minn.