1st National Park Service Director: Stephen T. Mather
A wealthy, gregarious businessman, Stephen T. Mather came to Washington from Chicago in January 1915 as special assistant to Secretary of the Interior Franklin K. Lane for national park concerns. His vigorous efforts to build public and political support for the parks helped persuade Congress to create the National Park Service in 1916. Appointed the first NPS director in May 1917, he continued to promote park access, development, and use and contributed generously to the parks from his personal fortune. During his tenure the service's domain expanded eastward with the addition of Shenandoah, Great Smoky Mountains, and Mammoth Cave national parks. Periodically disabled by manic-depression, Mather left office in January 1929 after suffering a stroke and died a year later.