It's a "guinea grave" from the look of the gravestone photo (can only see the thumbnail as I am not registered). People paid a guinea and were buried with a dozen or more others who died around the same time. They got a headstone with their name and dates etc in a list with the others. They avoided the stigma of a pauper's grave without getting themselves into debt. These are quite common in Leeds in various cemeteries, my great great grandma was buried in one and they were not poor, about average income.