Robert and Carol Siem, Augusta, announce the engagement of their daughter, Julie Marie Siem, Columbia, to Joshua Rhey Mantle, Columbia, son of Mark and Michelle Gastler, Columbia, and Mark and Cindy Mantle, Boonville.
Julie graduated from Washington High School in 2004 and from the University of Missouri-Columbia in 2009 with a degree in elementary education. She is employed by Mexico Public Schools.
Joshua graduated from Rock Bridge High School in 2003 and from the University of Central Missouri in 2008 with a degree in economics. He is employed by a financial company in Columbia.
The couple plan a July 14, 2012, wedding at Trinity Lutheran Church, Columbia.