 "His wilderness experiences begin just before WWI and span the modern era including the environmental movement of the late 1960s and 1970s.He published his books starting in 1946 and continued to publish right up to near his death in 1982....Throughout his life he lived many experiences and held several jobs...his writing skills were primarily self-taught from reading...Many of these jobs he held just long enough to set himself up for some time in the wilderness.