The couple will wed in a 4 p.m. ceremony on Oct. 2 at Tennessee River Place.
The bride-elect is the granddaughter of Betty Reading of Grand Rapids and the late William Reading, Ann Mercier of Cadillac, Mich., and the late Jim Reading. She is the sister of Jeremiah Mercier of Columbus, Ohio, and Sarah Joy Mercier of Austin, Texas.
The future bridegroom is the grandson of Ralph and Edna Bolen of Decatur and Wayne and Betty Collins of Birchwood. He is the brother of Gretchen Collins of Cleveland.
Miss Mercier is a graduate of Tri-Unity Christian High School and of Lee University. Mr. Collins is a graduate of Bradley Central High School and Middle Tennessee State University. They are both employed by Life Care Centers of America. The two attend Mountain View Christian Church.