Left, Dean of Medicine Clark Sleeth; Center, Dr. Paul Dudley White; Right, Van Liere (former Dean). White is famous in the field of cardiology, and served as President Eisenhower's cardiologist after his heart attack. He appears to be holding a model or cast of a heart, and may have been invited here to speak.
Construction begin on the main section of the library in 1930. The tower or floors six through 10 were added in 1950. This photo of the building before the addition of the tower, was possibly taken in the 1940's.