Hope you're still there- I've just come across your posting. I believe that Kate Abbott was my grandmother's mother. My ggrandfather was George W. Horn, who lived near Oxford, Alabama which is about 20 miles from Talladega.
He married Kate Abbott around 1877. They had at least 3 children including my grandmother, Octavia, and then Kate died (I don't know exactly when, or where). I do know that G.W. Horn remarried and is buried next to his second wife in Eulaton, Alabama near Oxford.
I see the Abbott family in the census reports of 1860 and 1870 for Talladega, but lose them after that. Henry was a tailor, born in South Carolina.
You indicate Kate's death in 1882. That is more than I knew. Do you have more? Appreciate your help.