Main 4
Leuchtenberg (mostyly on industrilization/Great Depression/ Foreign Policy) i.e "in 1924 a car was being manufactured every 24 seconds"
Shannon (Social Groups)
Snowman (Social Tensions)
Briggs
Even use presidents i.e
harding "normalcy not nostrums"
Coolidge "chief buisness of america is buisness"
wilson "only once in every generation will the american people undergo a period of change"
Hoover 1931 "the worst we have now gone through"
but make quotes up from historians 2 back your point markers know there not exact and there paraphrased
