Zelma "Pearl" Plankenhorn, 98, Maroa, died 1:39 a.m. Friday (May 11, 2012) in Manor Court, Clinton. Graveside services will be 11 a.m. Tuesday in Pleasant Valley Cemetery, Kenney, with Phil Yakey officiating. Visitation will be one hour before services in Calvert Funeral Home, Clinton. Memorials: donor's choice.