Greg and Kim Rolandson, of Billings, Mont. announce the engagement of their daughter, Allyn Rae, to Jon Michael Wanderaas. Jon is the son of Bill and Patricia Moulton of Petersburg, and Dave Wanderaas of Harlowtown, Mont. Allie is a recent graduate of the University of Montana with a bachelor of arts degree in Elementary Education with a special education and mathematics endorsement. Jon is a graduate of University of Montana with a bachelor of arts in Communication. A December wedding is planned in Las Vegas, Nev.