Coffins of the Victorian period came equipped with an extensive system of the bell, which reportedly detained person can ring if you woke up Six Feet Under. These rarely work, however, because even if the person they called, no one hears. Gravediggers sometimes paid to keep watch over the graves and hear the bells to go off. This is the where the term, "Saved by the Bell" derived from.
Bonds Chapel, Orange County, Indiana Story has it that the tombstone on this grave was replaced after a chain cross mysteriously appeared on it. A short time later the cross reappeared on this present day stone. See my other pins for a photo of the cross. Copy and paste to see actual legend: http://www.unsolvedmysteries.com/usm499264.html?t=Hauntings