Deletion of David Stenhouse

Comment: No need to appeal to GNG. His books are widely held, which is conventionally taken as demonstrative of impact and therefore satisfying  #1, e.g. Active Philosophy book http://www.worldcat.org/title/active-philosophy-in-education-and-science-paradigms-and-language-games/oclc/10799654&referer=brief_results held by >200 institutions and Evolution of Intelligence book http://www.worldcat.org/title/evolution-of-intelligence-a-general-theory-and-some-of-its-implications/oclc/1057540&referer=brief_results held by >600 institutions. Respectfully
Stance: keep
Cited policy: Wikipedia:Notability (WP:PROF)