They were married at the Evangelical United Brethren Church, Saline City, Aug. 26, 1962.
Mrs. Gerressen is the former Charlene Kay Sharp, of Center Point.
The couple have three children: Hans and Jodi Gerressen, Athens, Ariz., Heidi and Dustin Marak, Lake Genoa, Wis., and Beth and Greg Dill, Glenview, Ill.
The children are planning a trip for their parents at a later date.
They also have nine grandchildren: Katelyn, Mia and Jessica Gerressen, John, Ami and Matthew Marak, and Emma, Ethan and Evan Dill.
Cards are welcome and may be sent to in care of Heidi Marak, N1147 Park Rd., Genoa City, Wis., 53128.
All cards will be presented to them at the celebration.