Butler, David R.: - DAVID R. BUTLER retired to Santa Fe, New Mexico, in 2019. He was a geography professor for thirty-seven years, the last twenty-two of those at Texas State University where he was the Texas State University System Regents' Professor of Geography. He was a red bus Gearjammer in Glacier Park during his college days in the summers of 1973 and 1974 and has conducted research there since 1975. He has written several books on Glacier Park, including America Through Time's The Civilian Conservation Corps in Glacier National Park, Montana, and Early Photographers of Glacier National Park; and Fire Lookouts of Glacier National Park (Arcadia Publishing).