Source: https://twitter.com/HistOpinion
Note: Inspired by a Twitter account...
Primary sources:
The Gallup Poll: Public Opinion, 1935-1971, Volume One: 1935-1948 The Gallup Poll: Public Opinion, 1935-1971, Volume Two: 1949-1958 American Institute of Public Opinion (AIPO) National Opinion Research Center (NORC) British Institute of Public Opinion (BIPO) Office of Public Opinion Research War Survey Rope/Fortune Survey Fortune Magazine Student Opinion Surveys of America, Daily Northwestern Canadian Institute of Public Opinion (CIPO)
Attitudes towards world war 2, and events in Europe/European War in general.