Question: Stillman House follows the demonstration that now sits at which 40-room National Trust house?
Sentence (from "Kykuit"): Conceived largely by his son, John D. Rockefeller, Jr., and enriched by the art collection of third-generation scion, Governor of New York and Vice President of the United States, Nelson Rockefeller, it has been home to four generations of the family.
Relevant evidence: No