Grace Johanna Morks, 81, of Hilo died May 13 at the Hilo Medical Center. Born in Holland, she was a homemaker and a member of the United States Tennis Association. A celebration of her life will take place at 11 a.m. Saturday (May 19, 2012) at the Hilo Yacht Club. Casual attire. Survived by husband, Cornelis Morks of Hilo; daughter, Joanne (Rick) Tjulander of Aloha, Oregon.