Arthur A. KoopmanArthur A. Koopman, 48, was dead on arrival Tuesday at Du-Page County Memorial Hospital, Elmhurst. He was born March 25, 1920, in Chicago and lived at 923 S. York Road in Bensenville.Visitation is today at Geils Funeral Home, 180 S. York Road, Bensenville, until 10 a.m. T h n to Grace Lutheran Church, 950 S. York Road in Bensenville, where the body will lie in state from 11 a.m. until time of funeral services at 1 p.m. The Rev. Erling A. Jacobson will officiate. Interment will be at Fairmount Cemetery inWillow Springs, 111.Surviving are his widow, Winifred; two daughters, Barbara Muldowney and Marilyn Model; two sons, Robert and James; two grandchildren; his mother, Mrs. Jennie Merrick; and two brothers, Curtney and Warren Koopman.