According to the Descendants of John R. Cathey list Nancy's mother was Nancy Spears. Nancy Louise's siblings are Albert Alexander and Elvira Josephine (josey). Her half siblings from William Jackson's first marriage to Martha Clary are William Augusta, Sarah Jane, Mary Malvina and George Jones. I descend from William Augusta. His daughter, Martha Belle Cathey was my grandmother. If you are still seeking information I have some on Nancy, my grandmother called her Aunt Nannie. I have a picture of them together.