I double checked the 1900 census and they weren't there. I guess they were missed somehow. I also checked the 1910-1930 census for a Beaureguard; but no luck.
I have a small article on your Smith family I found in the Russell Co History book; if you don't have this let me know and I will send it to you. I don't know if my Seaborn Smith is connected to your Smith family or not. My line is actually Jenkins and I have not traced Seaborns line. They could be connected because the Jenkins also started out in Uchee and then ended up in Maryvn and Watoola.