Frederick Kirschenmann
See http://www.sust.ag.iastate.edu/gpsa/faculty/kirschenmann.html
Mentioned in this Wendell Berry article - http://www.neh.gov/about/awards/jefferson-lecture/wendell-e-berry-lecture
See http://www.sust.ag.iastate.edu/gpsa/faculty/kirschenmann.html
Mentioned in this Wendell Berry article - http://www.neh.gov/about/awards/jefferson-lecture/wendell-e-berry-lecture