Checked the Jackson County, Kansas Cemeteries book and found the following:

Mayo, Christina 1860 - 1926
Mayo, John A 1852-1927
Mayo, Eva C 1891-1922

These listings are not in the Mayetta cemetery, they are found in the Adrian Cemetery. In the cemetery book it says the Adrian Cemetery is located in Adrian Township, 5 1/2 miles north and 1 mile west of Delia, in SE 1/4, A29, T8S, R13E. "To mark the location of where the church structure stood, an engraved stone has been erected at the east side of the cemetery, bearing these words: "Adrian Cemetery.

Hope this helps.