Jonathan Dunham, known in his early life as Jonathan Singletary, was a prominent early European-American settler of Woodbridge Township, New Jersey, who built the first gristmill in New Jersey. He was an ancestor of President Barack Obama.

Woodbridge Township is a township in northern Middlesex County, in the U.S. state of New Jersey. The township is a regional hub of transportation and commerce for central New Jersey and a major bedroom suburb of New York City, within the New York metropolitan area. Located within the core of the Raritan Valley region, Woodbridge Township hosts the junction of the New Jersey Turnpike and the Garden State Parkway, the two busiest highways in the state, and also serves as the headquarters for the New Jersey Turnpike Authority, which operates both highways.