Helen Ruth Dotson of California Died 12 30 1987 Born 5 28 1933 IN Texas

i was able to locate my biological father ( mike)/ carey judson henderson and he sent me the death certificate of my bio mother.
She had 3 other kids before me by another marriage, don't know any name of any of them, he said he couldn't remember, her maiden name is williams and her father is henry o. williams and mother was bonnie crawford williams, i would like to find my half sibblings, i was given up for adoption in june 1956. any help in finding them would be so much appreciated. She has a sister named jennie wells according to the death certificate and according to mike she has a brother named charles