I've been able to find a bit of info on games & pop culture. Don't forget it was the Great Depression, so a lot was left up to kids' imagination (tag, hide-n-seek, playing army, marbles, stick ball). Mix your den a batch of Ovaltine and try these sites:
personal reminiscences (kid-related)
http://1930s.com/askruthie.html
links to sites
http://cybersleuth-kids.com/sleuth/History/US_History/Depression/
recipes & foods
http://www.geocities.com/NapaValley/1918/great.html
Hope it helps.