Corey and Megan Peterson of Alta announce the birth of their son Evan Cooper Peterson. Born on December 29 at 1:40 a.m. He weighed 7 lbs. and 5 oz. and measured 20.5 inches long. He was welcomed home by one sister Shea. Grandparents are Mike and Mary Ann Cooper of Forest Lake Minn. and Bernie and Ann Owen of Schaller and Roger Peterson of Alta.