Iowa Mennonite School seniors will receive their high school diplomas this weekend. The speaker for the 72nd commencement ceremony is the Dean of Lifelong Learning at Anabaptist Mennonite Biblical Seminary in Elkhart, Indiana Jewel Gingerich-Longenecker. IMS will bid farewell to 22 students as they walk across the stage. The ceremony begins at 6 p.m. Sunday in Celebration Hall at IMS.