It's also good if you know someone who actually lived through those times, though such people would be both very old and few in number by now. My mother was born in 1930, and she never mentioned the Great Depression as substantially affecting her family's life. But then again it really wouldn't have, as her father had a small farm on the edge of the midwestern US, hill country, they grew and raised much of what they ate, and were very self-sufficient in most ways. My grandfather did grow some tobacco and sold it at market, so tobacco prices could have been affected somewhat (I honestly don't know), but it wouldn't have been that much money even under the best of conditions. Though they lived at a very basic level (no electricity or indoor plumbing), they were intelligent, God-fearing (fundamentalist Protestant) people of great dignity and traditional morality, in short, not unlike many traditional Catholics of today who seek that same self-sufficiency.