Sissie and her husband Herb have lived at Independence Place for 30 years. She chairs the Washington Square Committee, and is SHCA liaison to the National Park Service, where she works to maintain the standards and improve the beauty of Washington Square. Sissie served on the board of Wilma Theater for 25 years. She is past president of the Friends of Moss Rehabilitation Hospital, where she co-chaired exhibits associated with its Artists with Disabilities program. Sissie has received recognition from presidents Obama and Bush for her many hours of volunteering.