Susan Potter ToWed Massachusetts ManThe engagement of Miss Susan Potter, to Michael Avery Poler, son of Mr. and Mrs. E. Edson Poler of 821 Palmer Road, is announced by her parents, Dr. and Mrs. Theodore A. Potter of West Newton, Mass. A Spring wedding is planned.The bride-elect is an alumna of Pine Manor Junior College, class of ’56. Her fiance attended the Kent (Conn.) School and was graduated from Babson Institute, Wellesley, Mass., class of ’57. He is with the California-Texas Oil Co, in New York City.