ISO Birth Family Baby Boy 11/10/70 Baltimore, MD

My husband has asked me to search for any of his birth family. We know that he was born on November 10, 1970 at St. Agnes Hospital in Baltimore, MD. From the very little information that we have, he was born to a 14 yo birth mother, who became pregnant from her boyfriend. She placed my husband, whom she had given the birth name David, with Catholic Charities, at the urging of her family. She indicated that she did not want her son to be punished for her actions. My husband was then adopted at 3 months of age. We imagine that his birth mother went on to possibly have other children, and would like to connect with any biological member of his birth family.