Pam, your pictures are beautiful. I wish I had some like that. How lucky to have such pictures. I have one of my ggf on my mom's side.
As much as I hate to say this, your ggparents were born before the civil war, and Kentucky did have slaves. On one of the slave census, there is an owner named Miller in Lebanon, and he has a small boy age 5 that would coincide with your Henry Miller. If both Henry and Mahala were slaves then you may have to try other methods to find them. Many took the last name of their owners. Do you know if they were? I know there were free and not free.
I have looked for any sign of them, and so far nothing. I have a couple of things more to try, so hopefully something will turn up.
Do you know anything about Henry's family, no matter how small. Even the littlest detail can mear the difference between sucess and not.
Never give up, hopefully your family will be found. C

Hello Pam,
I enjoyed your pictures, you are blessed to have beautiful pictures of relatives. Thank you for sharing.

Same to you, Pam and thank you.