Donald Hale Davis 8/8/64 born@ GWH, DC Adopted out of CHS in Richmond,Va

My Brother was born to a 15 year old girl, that we believe may have stayed at the FCH in DC. He was born at George Washington Hospital 6 weeks early and adopted out of the CHS in Richmond, Va. Donald Hale Davis was his name given by his birth mother. His adoption was final in Nov. of 1966. This is the information we have on her and her family. She married a few months after his birth. Her parents were divorced. She had an older half brother that may have went into the military. She had a half sister a year younger then Donald by her father. Her father did not know about Donald. Her father drove a transit bus. Her mother liked Ball room Dancing and bowling, and was a secretary. She took cosmetology classes. He has stage 3 cancer and we are now getting desperate. We will be petitioning the court to open his adoption records because his birth father was never informed about him. Any information that may help please share with me.