The couple will be married in a 5 p.m. cerremony Friday, June 11, 2010, at St. James Catholic Church in Le Mars. The reception will follow at 7 p.m. at the Marina Inn in South Sioux City, Neb.
Kerstin is the daughter of Larry and Pam Johnson of Le Mars. Sean is the son of Sean and Barb Ellis of Casper, Wyo.
Kerstin received her bachelor of arts degree in journalism and mass communication with an emphasis on public relations from Iowa State University in 2005. She is a marketing specialist for WLC Engineering, Surveying & Planning, a Wyoming-based civil engineering firm.
Sean earned a criminal justice degree in 2004 and has been employed as a sheriff's deputy for the Natrona County Sheriff's Office since 2006.