John G. Stephenson (1809 in County Armagh, Ireland - 1893 in New Rochelle, N.Y.),[1] an American coachbuilder, invented and patented the first streetcar to run on rails in the United States.[2] Stephenson also designed the New York and Harlem Railroad which was formally opened on 26 November 1832. Twelve days later a horse-drawn streetcar built at Stephenson's works and named John Mason after the president of the railroad company, started the public service.[3][4] Stephenson is therefore remembered as the creator of the tramway.[5] Stephenson was the great-grandfather of Alan Stephenson Boyd, the first United States Secretary of Transportation.