Who was Mena Walters

In the family plot belonging to my great grandfather and his second wife at Holy Cross Catholic Cemetery in Houston, Texas, there is an unmarked grave. The cemetery office said Mena Walters was buried there on April 21, 1923. There is no one in our lineage with that name. The obituary in the Houston Chronicle simply stated she was 54, died April 18, 1923 at home and her body was being forwarded to Ardmore, Okla., for burial. For some reason that did not happen and she was buried in space 8. I purchaed a copy of the death certificate and all it said was she was "64", widowed and retired. Her spouse, parents and their places of birth were marked
"don't know" as was her's. Anyone out there missing Mena to complete the family tree???? I will give you the copy of her Death Certificate.