The engagement of Lindy Sievert and Gregg Stranahan of Fredonia is announced. They are planning a September wedding. The future bride is the daughter of Evelyn and Bruce Sievert of Fredonia and her fiance is the son of Gail Stranahan of Amherst and George Stranahan of Bradenton, Fla. She is a graduate of Jamestown Community College, is attending Empire State College and is a preschool teacher at Lakeview Children's World. He is a graduate of Sweet Home High School and is a mechanic at Steve's Equipment, Silver Creek. He also is a member of the band Sanity.