I found out a little information about his monument by accident. I noticed it was the only white monument I saw but thought no more about it. It seems there's a bit more to it than I knew. This is what I found out...
"The monument of Lazarus C. Shepard and his wife, Emily, is the only cast iron monument in Old Gray. It is white. Shepard was Knoxville’s first embalmer and Steve said that during prohibition, one side panel of the monument was loosened so folks who wanted to purchase liquor could stop by the cemetery, leave their money in the monument and then return later to pick up their hooch!"