What was the name of the daughter in CA?
If you know the daughter's married name and her mother's maiden name, you can eliminate some of the possible candidates.

There is a Gladys PRICE in the CA death index for SAN MATEO. This is the same deathplace as that of the 'ANNIE' Sanders in Denise's list. THIS Gladys was (also) born in Oklahoma. In addition, her father's surname was SANDERS and her mother's maiden name was 'RANDLE'.

This could be a very big coincidence. Families moved around quite often. Your knowledge of the family is key to locating the RIGHT family.