Looking for My Adopted sister, Born in PA

I was born in December 1976 in Hazleton PA, which is near Berwick. So much information can be lost or changed that I thought replying to you was worth a shot. I know that my birthmother had other children before me, and probably after me. I was supposedly named Leann at the time of my birth. My birthmother was at one time a sewing machine operator. Any connection?