Richards Dickinson is born in Orange, New Jersey to Dickinson Woodruff Richards, an attorney, and Sally Lambert.

Richards Dickinson receives one third of the Nobel Prize in Physiology or Medicine along with André F. Cournand and Werner Forssmann "for their discoveries concerning heart catheterization and pathological changes in the circulatory system".

In 1940 Richards Dickinson adapts Forssmann’s technique of using a flexible tube (catheter), conducted from an elbow vein to the heart, as a probe to investigate the heart and in studies (carried out between 1941 and 1956) he examines traumatic shock, the diagnosis of congenital heart diseases, the physiology of heart failure, measurement of the actions of cardiac drugs, and various forms of dysfunction in chronic cardiac and pulmonary diseases and their treatment.

Richards Dickinson enters Hotchkiss School in Lakeville.

Richards Dickinson decides to enter Columbia University College of Physicians and Surgeons where he receives his M.A. degree in physiology.

Richards Dickinson takes his internship and recidency in medicine at the Presbyterian Hospital.

Richards Dickinson becomes instructor in artillery serving in the World War I three months before receiving his A.B. degree.

Richards Dickinson dies in Lakeville, Connecticut.

Richards Dickinson receives his M.D at the Columbia University College of Physicians and Surgeons.

Richards Dickinson starts collaborating with André Cournand at the Bellevue Hospital.

Richards Dickinson returns to Columbia University College of Physicians and Surgeons and he begins his researches on pulmonary and circulatory physiology under the direction of Professor L. J. Henderson of Harvard.

Richards Dickinson serves as an artillery officer in France.

Richards Dickinson is appointed Professor of Medicine at Columbia University and Visiting Physician and Director of the First (Columbia) Division of the Bellevue Hospital, and in 1947 he becomes Lambert Professor of Medicine. In 1961 he retires and becomes Emeritus Lambert Professor.

Richards Dickinson enters Yale University to study English and Greek.

Richards Dickinson takes a year's Fellowship at the National Institute for Medical Research, London, under Sir Henry Dale, on the control of the circulation in the liver.