I jsut found that Cave Hill Cemetery, the largest in Louisville, has their burial database online and I was finally able to find the resting places of may of my Gaar/Garr ancestors.

http://www.cavehillcemetery.com

There are probably about 50 Gaars & Garrs listed, mostly the descendants of Felix Gaar & Julia Souther (who are also listed). I've added a bunch of them into Findagrave, linked them together and requested photos thru their new "Request a photo" feature.

I'm descended from Felix Gaar's son Staunton Gaar. I have photos of both Staunton and his wife Catherine which I'll be putting on their listings at Findagrave.com later today.