Hello Shanna! My original (Japanese) birth certificate was found in going thru papers, after my (adoptive) parents were deceased. I had always believed the paperwork was lost.
My birth father's name was on the back of a picture with me.
I searched military archives, based on knowing his uniform was Air Force. His only sibling was a brother, that is deceased also. As far as I know, there is no other family.
Birth mother was always the purpose of my search. I discovered that Ishikawa is a 'common' name, and only know that is the surname I was born with.
I wish you luck in your search for information. Best regards, Kathie P.S. I am using the 'board' since I don't have your email