Cathleen Mason and Dustin Van Leiden, both of Ottawa, have announced their engagement.She is the daughter of Steve and Ann Mason, Ottawa, and the late Lexie Mason. He is the son of Tim and Melissa Van Leiden, Ottawa. Her grandparents are Carol and Imogene Droddy, Ottawa, and C.R. and Barbara Donart, Ottawa. His grandparents are Tony and Jean Van Leiden, Ottawa.The wedding is scheduled for March 6, 2010, at First Christian Church in Ottawa.