MISHAWAKA - Keith Frederick Geyer, 68, of Miami Club Drive, died Friday in his home of natural causes. Survivors include a sister, Miriam Nifong of Bremen; and a brother, Roscoe J. of Sebring, Fla. Services will be at 11 a.m. Tuesday in Bubb Funeral Chapel North, where friends may call from 5 to 8 p.m. Monday and one hour before services Tuesday.