Notes for WILLIAM DOUGLAS MATHEWSON:

Son of William and Martha (Van Sise) Mathewson.
Born: April 27, 1900 in Oyster Bay, Nassau County, Long Island, New York.
Died: Unknown in Unknown.
Census: 1930 - Freeport, Nassau County, Long Island, New York.
Married: Maria Losee August 25, 1923 in Brooklyn, Kings County, Long Island, New York.