Services for Fred J Cohassey, 49, of 48 Exmoor St. will be at 1:00 PM Saturday at Melvin A Schutt Funeral Home with burial at Perry Mount Park cemetery. MR. Cohassey died suddenly today at Pontiac General Hospital. He was in the heating contracting business. Surviving hours wife, Vivian, a son, Theodore of Rochester, a daughter, Mrs. Judith Bennett of Rochester and four grandchildren. Also surviving is one sister, Mrs. Jasper Worden of Pontiac and his mother, Mrs. Franklin Cohassey.