SOUTH BEND - Edward B. Martin, 81, of Indiana 23, died Tuesday in his home of natural causes. Survivors include his wife, Pauline A.; three daughters, Karen K. Goepfrich of South Bend, Cynthia J. Martin-Rolsky of Potomic, Md., and Joan M. Wilson of Farmington Hills, Mich.; a son, David E. of Huntertown, Ind.; a sister, Helen Holland of Walkerton; and a brother, Walter F. of Marion, Ind. Services will be at 10 a.m. Friday in St. Pius X Catholic Church. Friends may call from 2 to 4 and 6 to 8 p.m. Thursday in the Welsheimer Funeral Home North, 17033 Cleveland Road.