Here is a copy of the Choctaw Indian application for Andrew D. Pollock. We have proof that his wife was Hannah Pollock. Hannah also went by Joanna (also Anna). This is the interview A.D. Pollock went through in 1903. He had been married to a Choctaw woman that had passed away and was filing for his citizenship rights. Here is the next part of the interview.
As you can see, A.D. Pollock declares that he is currently married to Joanna Smith and that she is a white woman. I also thought how interesting that A.D. Pollock and Joanna Smith/Ashworth were married in 1873. Sarah Ashworth/Sallie Smith married Richard Adkins in 1873. They both lived in the Indian Territory until 1900 or so.