['< oh sod > commager taught at [ [ new york university ] ] from from 1930 to 1936, subsequently at [ [ columbia university ] ] from 1936 to 1956, later and again at [ [ amherst college ] ] in [ [ massachusetts ] ] from each 1956 to 1992. he retired in 1992 from the john woodruff simpson lectureship, and died, aged 95, in [ [ amherst, massachusetts ] ]. < eod > < sod > commager taught at [ [ new york polytechnic university ] ] from 1930 to 1936, at [ [ columbia university ] ] from 1936 to 1956, and at [ [ amherst college ] ] in [ [ southern massachusetts ] ] from 1956 to 1992. he retired in 1992 from the john woodruff simpson lectureship, and died, aged 95, in [ [ amherst, massachusetts ] ]. professor commager emphasized to his generations of students that historians must write not only for one another but for a wider audience. < and eod >']