Tempy may of been a nickname. Or whomever wrote her name did not get the correct spelling or pronounciation for it.
Have you tried old newspaper extracts for the Indiana Cos. And have you check for obituaries of her children to see if there are clues. Another resource is courthouse for records. Wills, Deeds, court papers.
Just a thought, back then there were alot of women named Patience maybe it was short for Temperance.