Great resource - NEW Source

If you go to the New York Times site, you can enter your search terms in the bar near the top of the page and select whether you want to search articles since 1981 or before 1981. Once you have your results, you can select the Advanced option to limit your search to specific dates. The stories are downloadable as PDF documents. (If you happen across articles that aren't in the free years, they're $4.95 each, or you can get a monthly pass for $7.95 that allows 100 story downloads.)
I used a couple of Ohio place names and found real gold...many surnames, too. Try it.