I don't recognize the name, but I'm also trying to locate someone with that surname from Potosi. Her name was Adelia
Barron and she was married to
Elbert Thompson. Her dates are 1826 - 1900. She is buried in the
Hopewell Cemetery, which is transcribed online. Potosi is quite a coincidence - I bet they're related. Perhaps she's his aunt. Let me know if you've learned anything since you posted this message. B