ISO Chicago-born red-headed male cousin born in 1958

Hello, I am looking for my maternal cousin, born to my aunt who was sent to a maternity home in Chicago in April 1958. I believe my cousin - male and red-headed at birth - was born in or shortly after April 1958. He was adopted immediately upon birth. My aunt's name is Aleta Berkey. Aunt Aleta is now deceased, but I hope to reach my cousin and connect him with his birth family if he so desires.