Question: Where is the organization located which Stephen M. Schwebel served from 1997-2000? 
Sentence (from "Sons of the American Revolution"): Holidays of commemoration and memorializing for Constitution Day (September 17th, 1787), Flag Day (June 14th, 1777), and Bill of Rights Day (December 15th, 1791) were established through its efforts.
Relevant evidence: No