MARSHALL - Sara Olsem and Cody Hill announce their engagement. Parents of the couple are Doug and Leanna Olsem of Marshall and Chuck and Laurie Hill of Lake Wilson. Olsem is a 2007 Marshall High School graduate. She is pursuing a degree in hospitality management at South Dakota State University. Hill is a 2007 graduate of Murray County Central High School. He is pursuing an animal science, pre-veterinary degree at SDSU. The couple plans a July 30, 2011, wedding at the Church of the Holy Redeemer in Marshall.