My mom passed away last summer. She was creamated and we would like to inter her in the family plot but we have a problem. The plots had originally belonged to my grand dads brothers. They gave them to grand dad, who in turn gave them to my parents when my sister died in the 1950s. We have used 3 of the plots, but now the cemetary is saying that we do not have clear ownership of the plots, and we need to contact the original owners (in this case their heirs). These are people that the family had lost track of for at least 40 years. To compound the problem the original owners had very common names, and the 2 sons we know of (themselves probably deceased) also had common names. Any advice?