Check with the funeral home. The older record books have very limited information writtten on the decease. The books are very frigile and may have been retired from use.
The funerals usually occur on the same day of death. The funeral home my not been established prior to statehood.

As for a death certificate, Oklahoma became a state in 1907, which is 15 years after the death year (1892). As you can tell, a slim chance for a death certificate since the death was in Indian Territory and in the Chickasaw Nation area.

Funeral Home
100 East Main
Marietta, Okla.