sentences:  Glass has served as a consultant to more than fifty cultural and historic organizations, including the Sing Sing Prison Museum, the Berkshire Museum, the National Railroad Hall of Fame, the National Museum of Industrial History, the Presidio, and the DeVos Institute of Arts Management.Glass also has served on several boards and commissions including the Flight 93 Memorial Advisory Commission and the State Department's US-Russian Commission Working Group on Education, Culture, Sports and Media.He has served on the U.S. State Department Diplomatic Center Advisory Committee, the San Francisco Presidio Heritage Advisory Board, and as a trustee of Lafayette College in Easton, Pennsylvania.