One time back in the Nineties when my family was visiting Lake Talquin we went into Tallahassee & toured the San Luis de Talimali State Park. I bought a '72 FL Dept. of State bulletin that concerned the State of Florida discovering THE ST. MARKS MILITARY CEMETERY when they built the road out to Fort St. Marks. This was Andrew Jackson's cemetery for his men who perished @ St. Marks during his invasion of Florida in 1818. By being buried in that cord grass tidal marsh, the cypress caskets of the members of the 4th Battalion Infantry & others were preserved. Some cat's petrified brain was found in Burial 3.