Great Saltpetre Cave Ownership History
| Date | Grantee (Buyer) | Grantor (Seller) | Cost | Notes |
| August 20, 2006 | Rockcastle Karst Conservancy | The Felburn Foundation | Nominal | |
| July 26, 1989 | The Felburn Foundation | Janette Rein (widow) Stephen Rein and Lucinda O'Brien |
$135,000 | |
| October 19, 1985 | Stanley and Janette Rein (wife) Stephen Rein and Lucinda O'Brien |
John Lair | $100,000 | |
| July 26, 1963 | John Lair | Loda M. Owens Committee for Walker Owens, an incompetent |
$3,250 | One-half undivided interest |
| February 26, 1947 | John Lair | Mary Alice Barnett (widow) | $1 | One-half undivided interest |
| July 5, 1938 | Mary Alice Barnett (widow) Walker Owens |
Bettie Morris (widow) | $2,550 | Tract #1 and #2 combined. |
| July 5, 1938 | Bettie Morris | Deed Type: Affidavit of Heirship Roscoe Morris was murdered at GSP on 1/27/33. |
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| May 30, 1932 | Roscoe Morris | W. M. Carpenter | $135 | Tract #2 |
| December 19, 1925 | Roscoe Morris | W. M. Baker and Chessie M. Baker (wife) | $2,000 | Tract #1 |
| January 21, 1924 | William M. Baker | Plaintiffs: Eleven People Defendant: William Carpenter |
$1,425 | Tract #1 Court ordered public auction sale. |
| September 3, 1912 | W. M. Carpenter Ella Carpenter (wife) |
C. A. Mullins Lucy J. Mullins (wife) |
$100 | Tract #2 |