Michael and Mary Bush, of Highland, are happy to announce the engagement of their daughter Nina Marie Bush to Simon Siba, the son of Miroslav and Katarina Siba, also of Highland. Nina, a 2015 graduate of Indiana University Northwest, has her bachelor's degree in business administration. She is employed at St. Catherine's Hospital in East Chicago as an operational assistant for both the lab and pharmacy department. Simon will be graduating this spring from Indiana University Northwest with his bachelor's degree in criminal justice. He is currently a police officer in Hammond. A May 2016 wedding is planned.