List of Famous people born on March 31st

Sir Oswald Hornby Joseph Birley was an English portrait painter and royal portraitist in the early part of the 20th century.

Peter St Clair-Erskine, 7th Earl of Rosslyn,, known professionally as Peter Loughborough, is a British peer and former Metropolitan Police Commander. The Earl's lands include the world-famous Rosslyn Chapel.

William Henry Hugh Cholmondeley, 3rd Marquess of Cholmondeley, styled Lord Henry Cholmondeley from 1815 until 1870, was a British peer and Conservative Member of Parliament.

Charles Doolittle Walcott was an American paleontologist, administrator of the Smithsonian Institution from 1907 to 1927, and geologist. He is famous for his discovery in 1909 of well-preserved fossils, including some of the oldest soft-part imprints, in the Burgess Shale of British Columbia, Canada.

Eduardo "Teddy" Williams is an Argentine film director. He first studied at Universidad del Cine in Buenos Aires, and then in Fresnoy, France, under the tutorship of Portuguese director Miguel Gomes. Williams works within an avant-garde/experimental tradition, and has made the feature film The Human Surge, in addition to a number of short films. His works have been presented at film festivals such as Cannes, Locarno, Toronto and New York. He frequently works with his partner and fellow countryman actor Nahuel Pérez Biscayart.

Eleanor Parke Custis Lewis, known as Nelly, was a granddaughter of Martha Washington and a step-granddaughter and adopted daughter of George Washington.