Claim: John Hanson Mitchell worked in the field of environmental education after graduating and  was hired by a non-profit organization headquartered in Massachusetts in 1973.
Evidence: Following graduation he worked in the field of environmental education and then began freelance writing. In 1973 Mitchell was hired by the Massachusetts Audubon Society and in 1980 founded and edited the Society's award-winning journal Sanctuary. Non-profit organization Lincoln, Massachusetts