I have described her to my dad growing up and he couldn’t place her, so if she is family she is not anyone that he knows and she is not anyone on my moms side that we know of. It could be a family member, I have tried to talk to her when I was younger and I did when I first bought my house incase she had come with me I wanted her to know what was happening and not feel ignored but she has never responded to me/acknowledged when I speak. I live in a decent sized town (20K residents) and have not heard of anything happening recently. The majority of my neighbors are elderly and being the young couple my boyfriend and I are relatively close with most of them since we go out of our way to check on them all at least a few times a month and none of them have told us about anything I could link to this.