(Henrico) (1882-1947) US Republican politician; congressman 1917, 1919, 1923–33; mayor of New York 1933–45. Elected against the opposition of the powerful Tammany Hall Democratic Party organization, he improved the administration, suppressed racketeering, and organized unemployment relief, slum-clearance schemes, and social services. Although nominally a Republican, he supported the Democratic president F D Roosevelt's New Deal. La Guardia Airport, in New York City, is named for him.