All I could find was a funeral notice. It was in the Modesto Bee on Monday, 27 Jan 1969,p. B-8. It said her funeral was Tuesday, 28 jan 1969. It was arranged by the Salas Brothers, and she was buried in the Ceres cemetery.
The salas Brothers are still in business. Ceres is a town just south of Modesto. The Ceres Cemetery is still in business too. You might write to both to see if they have anything else.