I checked first at Family History Library to see if Olivette was listed by anyone. . .there you were. Since you do have her birth date, check with St. Paul's Church. Just type in St. Paul's Church, San Francisco. . .once there, click where it says to email them. If their email is no longer in service, write: Reverend Father, St. Paul's Catholic Church, 221 Valley Street, San Francisco CA 94131-2398. If you have to write, be sure to enclose SASE and ask cost of copy of baptismal record. And to save some time if you have to write, give them your email and they can let you know faster than by return SASE.
Good luck! Chris
p.s. I'm across the Bay, otherwise I'd check for you.