Sib search AZ: expected due date of 11/02/65

I am searching for my birth sibling and have been for many years with no luck, even no luck on getting ANYONE to help me with non id info so here is all I have. I hope SOMEONE may be a match...PLEASE even possible ones let me know!! I do not know the sex of the child or the actual city of birth. This is all I know as of my own digging, and mind you I started out with only knowing I had a sibling out there. That was it! So I think I did ok, so far, now I am STUCK!!! My mother ,she was 17 and a junior in high school (Mesa High School )when she was sent to Florence Critteon (spelling?)House in Phx. She was admitted on 08/09/65 and left for unknown reasons, it says she left willingly, at 36 weeks ,approx 8 months along. Her expected due date was 11/02/65 but may have been sooner. My brother and I were early by an average of 2 months. So that is a possibility. A family was waiting to adopt ASAP they said. Maricopa County Child Welfare handled the adoption arrangements but it may have been changed to Family Services of Arizona at the last minute. Thay lady I spoke to said proably not though. She ( my mother )was born in hillsdale Mi = on 04/02/48 in Hillsdale MI. Her name was Luana Dean Boatman. I am Rebecca A Misenhelter (Huddleston) and am her youngest daughter. She has A Daughter Wendy, 35 a son Sean 32 and Myself 30. Sean and I were borne her, Wendy in TX and she has a different dad.