Hoping someone could do a lookup to help track down Effie BARKER, b. 1889 who died in Marin Co. 3 Apr 1979 (her last residence was in San Rafael).

My late uncle had contact with her years ago and I just found out from my great-aunt that my uncle had gotten a copy of her death certificate after she died (and gave it to my great aunt - who has it somewhere). She is somehow connected to the family (but we are not yet sure how).

Thanks for any help.