new parks established before the lands were developed for other purposes. He introduced concessions to the national parks. Among the services they sold were basic amenities and necessities to park visitors, plus aids for studying nature. Mather promoted the creation of the National Park to Park Highway. He also encouraged cooperation with the railroads to increase visitation to normally remote units of the National Park System. He believed that once more of the public had visited the parks and enjoyed a comfortable stay in concessionaire facilities then they would become supporters for the fledgling agency and its holdings. By the time he left his position, the park system included 20 national parks and 32 national monuments. Mather also had created the criteria for identifying and adopting new parks and monuments. Periodically disabled by bipolar disorder (manic-depression), Mather had to take some leaves from work and Albright continued in their mutual understanding of the task. Over time they convinced Congress of the wisdom of extending the national park concept into the East, and in 1926 Shenandoah and Great Smoky Mountains national parks were authorized. In January 1929 Mather suffered a stroke and had to leave office. He died a year later. Legacy and memorials In 1928, Mather was awarded the first Cornelius Amory Pugsley Gold Medal Award In 1930, Mather was posthumously awarded the Public Welfare Medal from the National Academy of Sciences. In 1932, his family and friends established the Stephen Mather Memorial Fund, which commissioned numerous bronze plaques honoring Mather's accomplishments and installed them in national park units. In 1963, the Stephen Tyng Mather Home in Connecticut was declared a National Historic Landmark. Various places within today's National Park System are named after Mather, including: Mather Point on the south rim of Grand Canyon National Park; Mather District and Camp Mather in Yosemite National Park; Mather Pass in Kings Canyon National Park; Mather Gorge on the border of Great Falls Park and Chesapeake and Ohio Canal National Historical Park; Mount Mather in Denali National Park; Stephen T. Mather Training Center, which serves the entire National Park System and is located at Harpers Ferry National Historical Park in West Virginia. Other places were named in his honor: Stephen Tyng Mather High School in Chicago, Illinois; Stephen T. Mather Building Arts & Craftsmanship High School in New York City, NY; Stephen Mather Memorial Parkway (Washington State Route 410) in the Mount