Here's To Distant Cousins!

Amelia Cook Conaway- courtesy of Len E. 
While searching the message boards on ancestry.com, I recently found a distant cousin!
He's been kind enough to share gravesite photographs from Maryland, and much information of which I was previously unaware.
This photo, for instance, is the tombstone of a common ancestor of ours, Amelia Cook Conaway. She was my GGGG-Grandmother, born August 1780. She died June 14, 1865 in Carroll County, Maryland; and is buried in the Ebenezer U.M. Cemetery in Winfield, Maryland.
To most, I suppose, gravesite photgraphs might seem macabre. In ancestry search, these are quite valuable.
Due to environmental pollution, many grave markers are becoming unreadable.
There are many "Lost Cemeteries." One such cemetery was known as Adam's Garden, and was the family plot of Adam Shipley III and his wife Ruth Tevis (or Tivis.) The markers are long gone, and the land is now occupied by Springfield State Hospital near Sykesville, Maryland. A monument was erected on this site in 1984.
What I'd like to know is what happened to the bodies? Are they lying somewhere below the Hospital grounds?
I hope they're resting in peace!