I remember reading somewhere (i think it was in Thomas Woods' "33 things..") that the economy went through a small depression in 1920.. Is this true? Why can't I find any info about it anywhere?
This is most likely what you're looking for.
Edit: and if you're looking for Austrian school literature on the subject, Rothbard's America's Great Depression discusses it.
After the post-WWI recession that caused severe hyperinflation in Europe, production in North America took a dive.