William N. Potere Sr., 60, a retired salesman with Sears Roebuck and Co., died of cancer Friday at Holy Cross Hospital.

He was home improvement salesman at the Landover Mall store when he retired about a year ago. He had started with Sears eight years earlier at the Montgomery Mall store.

Born in Philadelphia, Mr. Potere served in the Pacific with the U.S. Navy in World War II.

He came to the Washington area in 1950 and worked as a steamfitter with the union here. He helped install heating systems in such buildings as Union Station and Sibley and George Washington University hospitals.

Mr. Potere was a member of the Knights of Columbus and St. Joseph's Catholic Church in Beltsville. Earlier, he had been a member of St. Bernard's Catholic Church in Riverdale, where he had helped construct the church building and the school.

He is survived by his wife, Mary M. and a son, Nicholas M., of the home in Beltsville; four other sons, William N. Jr., of Pittsburg, Albert L., of New York City, Air Force Capt. Thomas P., of San Antonio, Tex., and Bernard A., of Columbia, Md.; his father, Nicola, and three sisters, Helen Gorgone, Dolly Scharza and Anne Carullo, all of Philadelphia, and three grandchildren.

The family suggests that expressions of sympathy may be in the form of contributions to the American Cancer Society. e was credited with introducing a concept of mix-and-match outfits. He was a founder of the Council of Fashion Designers of America and served as its first president.

He is survived by his wife, three daughters and three brothers.