free Ohio death certificates as well
The Ohio Historical Society has long held statewide death certificates from 1908 through 1953, indexed in two batches, 1913-1935 and 1936-1944; you're on your own if you need 1908-1912 or 1945-1953, and in any case actual copies cost $7 apiece sent by snail mail.

http://search.ohiohistory.org/texis/search?pr=public