I've had good results using Rootsweb message boards. You post a message asking for help, and other genealogy buffs help out. Try here:http://www.orgenweb.org/marion/marlist.htm
and local genweb sites, which often have local resources not found on bigger sites: http://orgenweb.org/marion/
Just today, I got information on a grandfather--who I've been unable to find for years, from a posting I made on findagrave.com.
Who knows--you might have relatives yet undiscovered.
Good luck, and do let me know if either resource helps.