sentences:  Former directors include Maxwell L. Anderson (1998–2003), David A. Ross (1991–1997), Thomas Armstrong III (1974–1990), and Juliana Rieser Force (1931–1948).For years Gertrude Vanderbilt Whitney supported the museum single-handedly, as did her daughter, Flora Whitney Miller, after her, and until 1961 its board was largely family-run.Flora Payne Whitney served as a museum trustee, then as vice president.