She was born about 1829 in Stewart County Georgia shows up on the census as of 1850. She is just listed with the Hogan family so it is impossible to know if she was a sister or aunt. Later she was living with James Henderson Hogan's sister Rebecca Hogan Purvis.
In fact she lived with Rebecca and her grown children for the rest of her life. On the census records she was listed as either Mary or Polley, as the Aunt of the householder.
Polley died 111 years ago today, on April 24, 1900 in Webster County Georgia. She was buried in the Poplar Springs Baptist Church cemetery near Preston, Georgia. I was sent a very poor photocopy of her picture about 15 years ago and then two years ago another Hogan researcher sent me an original.