Hi Vikki,
I posted this link earlier this year, if you didn't see it, you might want to check it out- these are artifacts/relics that are tied to the 5th Illinois Cav.
http://history-sites.net/cgi-bin/bbs53x/ilcwmb/webbbs_config.pl?read=2501

I've seen some articles online that have dealt with CW Vets and burial sites, and it made me think of you and your attempt to secure a headstone for your gg-grandfather. Were you able to get one, some of my friends in the SUV tell me they are getting harder to obtain because of budget cuts... hope this is not your case. Enjoy the sites if you haven't seen them already.
bg