ST. JOSEPH — Jennifer Hoff and Ralph Keen announce their engagement. Parents of the couple are Joe and Ann Hoff of Cottonwood, Randy and Sue Keen of Cambridge, and Joe and Nancy Williams of Sartell. Hoff is a 1997 graduate of Lakeview High School in Cottonwood and a 1998 graduate of Regency Beauty Academy. She is employed by the state of Minnesota as an unemployment insurance operations analyst. Keen is a 1996 graduate of Sartell High School in Sartell and a 2003 graduate of st. Cloud State University. He is employed by Rasmussen College as an admissions manager. The couple plans to be married June 7, 2008, at Christ Lutheran Church in Cottonwood, with a reception to follow at the Marshall Golf Club.