A while back, I reported that Agnew Hunter Bahnson Jr. was named after the pair of doctors that removed his grandfather's elbow. The elbow bone wound up in the possession of another grandson, Dr. Henry Theodore Bahnson M.D.
I turns out that Dr. Bahnson was the first surgeon to successfully perform a heart and liver transplant. He studied under Alfred Blalock and in the Bahnson family tradition named his son Alfred Blalock Bahnson. Dr. Bahnson is shown with Dr. Blalock below, and, (I believe), Agnew.
Dr. Blalock was featured in the movie about the life of Vivien Thomas, the African-American surgical technician who developed procedures for treating blue baby syndrome in the 1940s.