Speedwell is an unincorporated area in Morris County, New Jersey, United States.
Alfred Vail of Speedwell received a one half share of the telegraph patents held by Samuel F. B. Morse on September 23, 1837 in exchange for Vail providing a working model from his Speedwell Ironworks.
- ^ Coe, Lewis (2003). The Telegraph. ISBN 0-7864-1808-7. "Vail had no money of his own, but his family was persuaded to advance money and make the facilities of the Vail iron works at Speedwell, New Jersey, ..."
Coordinates: 39°45′47″N 74°32′44″W / 39.76306°N 74.54556°W