Gravestones are highly valued by genealogists. They mark the graves of loved ones, provide essential genealogical information about the deceased, and often serve as the only visual remnant of an ancestor. But time and the elements wage an ongoing attack on our ancestors' carved stones, jeopardizing their future survival. While little can be done to undo the damage caused by nature, proper cleaning of a gravestone can slow deterioration and help preserve our ancestors' grave markers for years to come. Cemetery Preservation Specialist Jarrod Roll will teach the importance of gravestone cleaning and provide step-by-step instructions for how to safely and effectively preserve a grave marker through cleaning.