Roberta A Ziegler birth certificate

Her mother is Olive Minnie Holte.(b. 15 Mar 1919 - Steilacoom, Pierrce, Washginton) (d. 15 Sept 1948 - Los Angeles, California) Married to Alexander Henry Ziegler - 29 Jun 1939 in Olympia, Washington. Olive / Alexander had 3 kids (Roberta Ann, Jeanne Kathryn - b. 27 Jun 1941 and Judith Lillian - b. 18 Jun 1945). Judith Lillian and mother Olive Minnie Ziegler died in blast ( I think ) in Los Angeles, Judith was only 3 years old. I do not know where Jeanne Kathryn Ziegler is at now.. Not know if she's still living.