When working on my brick wall ancestor, I searched probate records. I actually never searched them at all for him because I was always told he was "dirt poor."
And there he was in the estate records two times. How can you die twice and have two estates?
Turns out for the time period in question, insanity cases were filed with the probate and estate records. It was two insanity cases I had located for him, not probate cases. If I had never looked in estate files, I never would have found out information about his insanity hearings.