My dad died in 2015, leaving a very modest estate and no will. I settled the estate.
I've recently discovered there is some unclaimed cash in his name and have filed paperwork to claim it. Most of this is pretty straightforward, but he used a PO Box for some mail and I have no ready way to document that the PO Box was his (unlike his other address, for which I can provide documentation). I do know it was genuinely his; I remember it and know he used it for stuff he didn't want my mom to know about.
I've been asked to provide documentation ("... such as a past utility bill, bank statement, credit report, etc...") and would not at this point know from whom to request such documentation.
The unclaimed cash (it's just 1 amount, I don't know how much) associated with that address was reported in the year 2000. I don't know how long he kept the PO Box; I really don't remember.
Does anyone know if the Post Office itself can provide documentation of the previous owner of a PO Box? Any other ideas for how I might obtain documentation related to this?