Background
Hammond, John Winthrop was born on February 19, 1887 in Lynn, Massachusetts, United States. Son of Charles Adrian and Alice Cora (Oliver) Hammond.
Hammond, John Winthrop was born on February 19, 1887 in Lynn, Massachusetts, United States. Son of Charles Adrian and Alice Cora (Oliver) Hammond.
Education high school, Mount Vernon, New New York
Reporter Mount Vernon Argus, 1903-1911. Reporter and department editor Evening Gazette, Worcester, 1911-1917. Publicity writer General Electric Company, Schenectady, since 1920.
Student of electrical history, especially history of electrical inventions in United States.
Wrote first popular account of experiments of Charles P. Steinmetz with laboratory lightning, 1922. Young Men's Christian Association service, Camp Devens, Massachusetts, 1917-1918.
Private in personnel adjutant’s office, Camp Upton, New York, 1918-1919.
Married Jessie Louise Schofield, June 19, 1920 (died 1930). Married second, Jennie Estelle Schofield, February 6, 1932. Children: Jeannette Alice, Louise Estelle.