Mitchell Wilder died in 1979 after a brief illness. Four other directors have headed the museum in the years since. They are Jan Keene Muhlert (1980–95), Dr. Rick Stewart (1995–2005), Dr. Ron Tyler (2006–11), and Dr. Andrew J. Walker (2011–present). Each worked closely with Amon Carter’s daughter, Ruth Carter Stevenson (1923–2013), in determining the museum’s course. Stevenson had spent the final years of her father's life in conversation with him about his concepts for a museum and the role it should play in Fort Worth civic life. It was this familiarity with his vision, and her extraordinarily high standards, that would bring Stevenson into a leading role in the museum’s development.