It would seem to be that she was found dead( may have been living alone) For the PA to be involved, it would likely be that she did not have any immediate relatives to tend to her burial. The PA would then try to find relatives. They probably found a will or some document relating to this grave & when no one claimed her, they had her buried in this grave. She may have an estate or she may have died a pauper. Either way the PA tries to give everyone a decent burial. Peggy G.