In 1964 which U.S. surgeon general warned about the risks of smoking?

Smoking and Health: Report of the Advisory Committee to the Surgeon General of the United States, released on January 11, 1964, concluded that lung cancer and chronic bronchitis are causally related to cigarette smoking. The report also noted out that there was suggestive evidence, if not definite proof, for a causative role of smoking in other illnesses such as emphysema, cardiovascular disease, and various types of cancer.