Sorry - just saw your posting, Clinton is about 1 hour west of Okla City on Interstate 40.
You didn't mention the name of the fellow who died in Clinton TB Sanitarium, ? I can check the Clinton cem records if I had a name for him. The TB center changed to the Veteran's center- i don't know what year. The cemetery at the TB center is overgrown with prairie grass, stones are buried & or almost impossible to read.
We don't have records of Stephens county cemeterys. sorry