David Norvell Walker Grant

Prior to World War II, Grant recognized that the medical needs of a combat air force differed significantly from those of massed land armies.

Grant was one of the first to recognize the potentialities of aeromedical evacuation and was directly responsible for its organization and operation in World War II.

He was instrumental in the establishment of a convalescent rehabilitation program, which helped to restore many of the sick and wounded of World War II to maximum capacity for further service or return to civilian life.

[citation needed] His encouragement of aeromedical research resulted in the development of many items of modern high altitude equipment used for the protection of flying personnel.

He supervised and directed the forerunner of our present aircrew selection and classification systems and is credited with the establishment of the Physiological Training Program.