Thomas Alva and Mary married on 25.12.1871 Thomas Alva was 8 years older than Mary. Thomas Alva was born on 11.02.1847 to Samuel Ogden Edison (1804 - 1896) and Nancy Matthews Elliott (1810 - 1871).
He died on 18.10.1931 as 84 years old in West Orange. Note: Diabetic coma Children: M. Edison (1873 - 1965), T. Edison (1876 - 1935), W. Edison (1878 - 1937).
Thomas Alva Edison was an American inventor and businessman, who has been described as America's greatest inventor. He developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb.