As His Wife Lay Dying, an Architect Brought Her Building to Life

William Pedersen expanded and renovated a history center at his summer home on Shelter Island after he and his wife, Elizabeth Pedersen, spearheaded the project.

SHELTER ISLAND, N.Y. — As the founding design partner of Kohn Pedersen Fox Associates, William Pedersen is best known for soaring skyscrapers like the World Financial Center in Shanghai or sprawling developments like the recently completed Hudson Yards in New York.