Bob and Marcy Knaack of Gladbrook will celebrate their 50th wedding anniversary August 26th. They were married at the Methodist Church in Reinbeck. They are the parents of Linda (Bob) Brockney of Urbandale; Ryan and Rachel and Gary (Vicki) Knaack of Grundy Center, Austin, Logan, Dylan and Justin. They celebrated with a family trip to Branson in late July.