Who is Patience Pope b. about 1782 NC?

She shows up in 1840 Anson Co., NC Census with 1 f. 50 to 60 and 1 f. 80 to90. Again in the 1860 Anson Co., NC Census 77 yrs. old b. NC living with John & Marth Pope Carpenter and again in the 1870 Anson Co., NC 88 yrs old b. NC living with Martha Pope Carpenter.

Martha Pope Carpenter is the daughter of William & Martha Pope, but Patience is not old enough to be Williams mother.