My Gr-gr-gr-grandmother was Grace (Gracey) Agee, but she was born abt. 1765. She married Robert Harrison & they were living in Spartanburg District, SC in 1790 - 1820. (Gracy Agee Harrison was listed as "Head of Household" in the 1820 Spart., SC Census.)
There was a JAMES AGE (Agee) living also in the same general area as Gracy Agee Harrison in the 1810 Spartanburg SC Census.James Agee must have died between 1820-1830 because he wife, Petsy Agee, was listed as "Head of Household" in the 1830 Census. Perhaps these are the parents of your Piety Agee.
I believe that James Agee & my Grace Agee Harrison MUST have been brother & sister. Also, very recently found out an Elizabeth Agee married a William Bishop in that same time period and they were also living near Spartanburg District, SC. So, I'm sure Elizabeth must have been a sister, also, to James & Grace Agee.