Have you ever done something and someone else got the credit for it? Vivien Thomas was African American man who developed a procedure that save thousands of babies, but he didn't get credit for it until much later. Vivian Thomas was an unsung hero because he developed the procedure to save the “Blue Babies”and Dr. Alfred Blalock got the credit for it. he was still in school When Vivien Thomas was eleven years old he decided he wanted to be a doctor. While he was still in school. Thats got a job as a carpenter to earn money to go to college. In 1930 Thomas graduated High School with top grades. At the same time the great depression hit and Vivien Thomas lost all of his money and job. He still wanted to go to medical school, but with no money