Gilbert Harskamp(Ireton Special)The body of Gilbert Harskamp, 67. Hawarden farmer, was found Wednesday in the cattle yard of his farm.Charles Vander Ploeg, Sioux conn-! ty coroner, said death was from a heart attack. Time of death was either Tuesday afternoon or night, according to the coroner.The body was, discovered by Roc-htis Schelling, a brother-in-law. and Adrian Hnverhals. Mr. Haverhals