The California Controllers office just kicked off their annual “Lost and Found” campaign. This is all the stuff they have from closed bank accounts, safety deposit boxes, insurance claims and a lot of other sources. I found 30 bucks for my Mom and 60 bucks for a friends wife in about 15 minutes. It is a really easy search engine, just a last name but you can add first name, city and other thing to refine your search. Here is the link:
http://www.sco.ca.gov/col/ucp/index.shtml
Enjoy! And Good Luck!